638572410

素因数分解:

$2^1\times 3^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 288

約数和(自身を含む): 2079447552

約数和(自身を除く): 1440875142

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 49, 54, 62, 63, 70, 81, 90, 93, 98, 105, 126, 135, 147, 155, 162, 173, 186, 189, 210, 217, 243, 245, 270, 279, 294, 310, 315, 346, 378, 405, 434, 441, 465, 486, 490, 519, 558, 567, 630, 651, 735, 810, 837, 865, 882, 930, 945, 1038, 1085, 1134, 1211, 1215, 1302, 1323, 1395, 1470, 1519, 1557, 1674, 1701, 1730, 1890, 1953, 2170, 2205, 2422, 2430, 2511, 2595, 2646, 2790, 2835, 3038, 3114, 3255, 3402, 3633, 3906, 3969, 4185, 4410, 4557, 4671, 5022, 5190, 5363, 5670, 5859, 6055, 6510, 6615, 7266, 7533, 7595, 7785, 7938, 8370, 8477, 8505, 9114, 9342, 9765, 10726, 10899, 11718, 11907, 12110, 12555, 13230, 13671, 14013, 15066, 15190, 15570, 16089, 16954, 17010, 17577, 18165, 19530, 19845, 21798, 22785, 23355, 23814, 25110, 25431, 26815, 27342, 28026, 29295, 32178, 32697, 35154, 36330, 37541, 37665, 39690, 41013, 42039, 42385, 45570, 46710, 48267, 50862, 52731, 53630, 54495, 58590, 59535, 65394, 68355, 70065, 75082, 75330, 76293, 80445, 82026, 84078, 84770, 87885, 96534, 98091, 105462, 108990, 112623, 119070, 123039, 127155, 136710, 140130, 144801, 152586, 160890, 163485, 175770, 187705, 196182, 205065, 210195, 225246, 228879, 241335, 246078, 254310, 262787, 263655, 289602, 294273, 326970, 337869, 369117, 375410, 381465, 410130, 420390, 434403, 457758, 482670, 490455, 525574, 527310, 563115, 588546, 615195, 675738, 686637, 724005, 738234, 762930, 788361, 868806, 980910, 1013607, 1126230, 1144395, 1230390, 1303209, 1313935, 1373274, 1448010, 1471365, 1576722, 1689345, 1845585, 2027214, 2059911, 2172015, 2288790, 2365083, 2606418, 2627870, 2942730, 3040821, 3378690, 3433185, 3691170, 3941805, 4119822, 4344030, 4730166, 5068035, 6081642, 6516045, 6866370, 7095249, 7883610, 9122463, 10136070, 10299555, 11825415, 13032090, 14190498, 15204105, 18244926, 20599110, 21285747, 23650830, 30408210, 35476245, 42571494, 45612315, 63857241, 70952490, 91224630, 106428735, 127714482, 212857470, 319286205, 638572410]

約数ペア:

[(1, 638572410), (2, 319286205), (3, 212857470), (5, 127714482), (6, 106428735), (7, 91224630), (9, 70952490), (10, 63857241), (14, 45612315), (15, 42571494), (18, 35476245), (21, 30408210), (27, 23650830), (30, 21285747), (31, 20599110), (35, 18244926), (42, 15204105), (45, 14190498), (49, 13032090), (54, 11825415), (62, 10299555), (63, 10136070), (70, 9122463), (81, 7883610), (90, 7095249), (93, 6866370), (98, 6516045), (105, 6081642), (126, 5068035), (135, 4730166), (147, 4344030), (155, 4119822), (162, 3941805), (173, 3691170), (186, 3433185), (189, 3378690), (210, 3040821), (217, 2942730), (243, 2627870), (245, 2606418), (270, 2365083), (279, 2288790), (294, 2172015), (310, 2059911), (315, 2027214), (346, 1845585), (378, 1689345), (405, 1576722), (434, 1471365), (441, 1448010), (465, 1373274), (486, 1313935), (490, 1303209), (519, 1230390), (558, 1144395), (567, 1126230), (630, 1013607), (651, 980910), (735, 868806), (810, 788361), (837, 762930), (865, 738234), (882, 724005), (930, 686637), (945, 675738), (1038, 615195), (1085, 588546), (1134, 563115), (1211, 527310), (1215, 525574), (1302, 490455), (1323, 482670), (1395, 457758), (1470, 434403), (1519, 420390), (1557, 410130), (1674, 381465), (1701, 375410), (1730, 369117), (1890, 337869), (1953, 326970), (2170, 294273), (2205, 289602), (2422, 263655), (2430, 262787), (2511, 254310), (2595, 246078), (2646, 241335), (2790, 228879), (2835, 225246), (3038, 210195), (3114, 205065), (3255, 196182), (3402, 187705), (3633, 175770), (3906, 163485), (3969, 160890), (4185, 152586), (4410, 144801), (4557, 140130), (4671, 136710), (5022, 127155), (5190, 123039), (5363, 119070), (5670, 112623), (5859, 108990), (6055, 105462), (6510, 98091), (6615, 96534), (7266, 87885), (7533, 84770), (7595, 84078), (7785, 82026), (7938, 80445), (8370, 76293), (8477, 75330), (8505, 75082), (9114, 70065), (9342, 68355), (9765, 65394), (10726, 59535), (10899, 58590), (11718, 54495), (11907, 53630), (12110, 52731), (12555, 50862), (13230, 48267), (13671, 46710), (14013, 45570), (15066, 42385), (15190, 42039), (15570, 41013), (16089, 39690), (16954, 37665), (17010, 37541), (17577, 36330), (18165, 35154), (19530, 32697), (19845, 32178), (21798, 29295), (22785, 28026), (23355, 27342), (23814, 26815), (25110, 25431)]