209869380

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 288

約数和(自身を含む): 782745600

約数和(自身を除く): 572876220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 81, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 162, 180, 186, 189, 199, 210, 217, 243, 252, 270, 279, 310, 315, 324, 372, 378, 398, 405, 420, 434, 465, 486, 540, 558, 567, 597, 620, 630, 651, 756, 796, 810, 837, 868, 930, 945, 972, 995, 1085, 1116, 1134, 1194, 1215, 1260, 1302, 1393, 1395, 1620, 1674, 1701, 1791, 1860, 1890, 1953, 1990, 2170, 2268, 2388, 2430, 2511, 2604, 2786, 2790, 2835, 2985, 3255, 3348, 3402, 3582, 3780, 3906, 3980, 4179, 4185, 4340, 4860, 5022, 5373, 5572, 5580, 5670, 5859, 5970, 6169, 6510, 6804, 6965, 7164, 7533, 7812, 8358, 8370, 8505, 8955, 9765, 10044, 10746, 11340, 11718, 11940, 12338, 12537, 12555, 13020, 13930, 15066, 16119, 16716, 16740, 17010, 17577, 17910, 18507, 19530, 20895, 21492, 23436, 24676, 25074, 25110, 26865, 27860, 29295, 30132, 30845, 32238, 34020, 35154, 35820, 37014, 37611, 37665, 39060, 41790, 43183, 48357, 50148, 50220, 52731, 53730, 55521, 58590, 61690, 62685, 64476, 70308, 74028, 75222, 75330, 80595, 83580, 86366, 87885, 92535, 96714, 105462, 107460, 111042, 112833, 117180, 123380, 125370, 129549, 150444, 150660, 161190, 166563, 172732, 175770, 185070, 188055, 193428, 210924, 215915, 222084, 225666, 241785, 250740, 259098, 263655, 277605, 322380, 333126, 338499, 351540, 370140, 376110, 388647, 431830, 451332, 483570, 499689, 518196, 527310, 555210, 564165, 647745, 666252, 676998, 752220, 777294, 832815, 863660, 967140, 999378, 1054620, 1110420, 1128330, 1165941, 1295490, 1353996, 1499067, 1554588, 1665630, 1692495, 1943235, 1998756, 2256660, 2331882, 2498445, 2590980, 2998134, 3331260, 3384990, 3497823, 3886470, 4663764, 4996890, 5829705, 5996268, 6769980, 6995646, 7495335, 7772940, 9993780, 10493469, 11659410, 13991292, 14990670, 17489115, 20986938, 23318820, 29981340, 34978230, 41973876, 52467345, 69956460, 104934690, 209869380]

約数ペア:

[(1, 209869380), (2, 104934690), (3, 69956460), (4, 52467345), (5, 41973876), (6, 34978230), (7, 29981340), (9, 23318820), (10, 20986938), (12, 17489115), (14, 14990670), (15, 13991292), (18, 11659410), (20, 10493469), (21, 9993780), (27, 7772940), (28, 7495335), (30, 6995646), (31, 6769980), (35, 5996268), (36, 5829705), (42, 4996890), (45, 4663764), (54, 3886470), (60, 3497823), (62, 3384990), (63, 3331260), (70, 2998134), (81, 2590980), (84, 2498445), (90, 2331882), (93, 2256660), (105, 1998756), (108, 1943235), (124, 1692495), (126, 1665630), (135, 1554588), (140, 1499067), (155, 1353996), (162, 1295490), (180, 1165941), (186, 1128330), (189, 1110420), (199, 1054620), (210, 999378), (217, 967140), (243, 863660), (252, 832815), (270, 777294), (279, 752220), (310, 676998), (315, 666252), (324, 647745), (372, 564165), (378, 555210), (398, 527310), (405, 518196), (420, 499689), (434, 483570), (465, 451332), (486, 431830), (540, 388647), (558, 376110), (567, 370140), (597, 351540), (620, 338499), (630, 333126), (651, 322380), (756, 277605), (796, 263655), (810, 259098), (837, 250740), (868, 241785), (930, 225666), (945, 222084), (972, 215915), (995, 210924), (1085, 193428), (1116, 188055), (1134, 185070), (1194, 175770), (1215, 172732), (1260, 166563), (1302, 161190), (1393, 150660), (1395, 150444), (1620, 129549), (1674, 125370), (1701, 123380), (1791, 117180), (1860, 112833), (1890, 111042), (1953, 107460), (1990, 105462), (2170, 96714), (2268, 92535), (2388, 87885), (2430, 86366), (2511, 83580), (2604, 80595), (2786, 75330), (2790, 75222), (2835, 74028), (2985, 70308), (3255, 64476), (3348, 62685), (3402, 61690), (3582, 58590), (3780, 55521), (3906, 53730), (3980, 52731), (4179, 50220), (4185, 50148), (4340, 48357), (4860, 43183), (5022, 41790), (5373, 39060), (5572, 37665), (5580, 37611), (5670, 37014), (5859, 35820), (5970, 35154), (6169, 34020), (6510, 32238), (6804, 30845), (6965, 30132), (7164, 29295), (7533, 27860), (7812, 26865), (8358, 25110), (8370, 25074), (8505, 24676), (8955, 23436), (9765, 21492), (10044, 20895), (10746, 19530), (11340, 18507), (11718, 17910), (11940, 17577), (12338, 17010), (12537, 16740), (12555, 16716), (13020, 16119), (13930, 15066)]