20272140

素因数分解:

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

素因数の和:229

約数の個数: 192

約数和(自身を含む): 74833920

約数和(自身を除く): 54561780

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, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 173, 180, 186, 189, 210, 217, 252, 270, 279, 310, 315, 346, 372, 378, 420, 434, 465, 519, 540, 558, 620, 630, 651, 692, 756, 837, 865, 868, 930, 945, 1038, 1085, 1116, 1211, 1260, 1302, 1395, 1557, 1674, 1730, 1860, 1890, 1953, 2076, 2170, 2422, 2595, 2604, 2790, 3114, 3255, 3348, 3460, 3633, 3780, 3906, 4185, 4340, 4671, 4844, 5190, 5363, 5580, 5859, 6055, 6228, 6510, 7266, 7785, 7812, 8370, 9342, 9765, 10380, 10726, 10899, 11718, 12110, 13020, 14532, 15570, 16089, 16740, 18165, 18684, 19530, 21452, 21798, 23355, 23436, 24220, 26815, 29295, 31140, 32178, 32697, 36330, 37541, 39060, 43596, 46710, 48267, 53630, 54495, 58590, 64356, 65394, 72660, 75082, 80445, 93420, 96534, 107260, 108990, 112623, 117180, 130788, 144801, 150164, 160890, 163485, 187705, 193068, 217980, 225246, 241335, 289602, 321780, 326970, 337869, 375410, 450492, 482670, 563115, 579204, 653940, 675738, 724005, 750820, 965340, 1013607, 1126230, 1351476, 1448010, 1689345, 2027214, 2252460, 2896020, 3378690, 4054428, 5068035, 6757380, 10136070, 20272140]

約数ペア:

[(1, 20272140), (2, 10136070), (3, 6757380), (4, 5068035), (5, 4054428), (6, 3378690), (7, 2896020), (9, 2252460), (10, 2027214), (12, 1689345), (14, 1448010), (15, 1351476), (18, 1126230), (20, 1013607), (21, 965340), (27, 750820), (28, 724005), (30, 675738), (31, 653940), (35, 579204), (36, 563115), (42, 482670), (45, 450492), (54, 375410), (60, 337869), (62, 326970), (63, 321780), (70, 289602), (84, 241335), (90, 225246), (93, 217980), (105, 193068), (108, 187705), (124, 163485), (126, 160890), (135, 150164), (140, 144801), (155, 130788), (173, 117180), (180, 112623), (186, 108990), (189, 107260), (210, 96534), (217, 93420), (252, 80445), (270, 75082), (279, 72660), (310, 65394), (315, 64356), (346, 58590), (372, 54495), (378, 53630), (420, 48267), (434, 46710), (465, 43596), (519, 39060), (540, 37541), (558, 36330), (620, 32697), (630, 32178), (651, 31140), (692, 29295), (756, 26815), (837, 24220), (865, 23436), (868, 23355), (930, 21798), (945, 21452), (1038, 19530), (1085, 18684), (1116, 18165), (1211, 16740), (1260, 16089), (1302, 15570), (1395, 14532), (1557, 13020), (1674, 12110), (1730, 11718), (1860, 10899), (1890, 10726), (1953, 10380), (2076, 9765), (2170, 9342), (2422, 8370), (2595, 7812), (2604, 7785), (2790, 7266), (3114, 6510), (3255, 6228), (3348, 6055), (3460, 5859), (3633, 5580), (3780, 5363), (3906, 5190), (4185, 4844), (4340, 4671)]