21136416280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1459}}^1\times {\mathrm{1669}}^1$

素因数の和:3177

約数の個数: 128

約数和(自身を含む): 56176128000

約数和(自身を除く): 35039711720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1459, 1669, 1736, 2170, 2918, 3338, 4340, 5836, 6676, 7295, 8345, 8680, 10213, 11672, 11683, 13352, 14590, 16690, 20426, 23366, 29180, 33380, 40852, 45229, 46732, 51065, 51739, 58360, 58415, 66760, 81704, 90458, 93464, 102130, 103478, 116830, 180916, 204260, 206956, 226145, 233660, 258695, 316603, 361832, 362173, 408520, 413912, 452290, 467320, 517390, 633206, 724346, 904580, 1034780, 1266412, 1448692, 1583015, 1809160, 1810865, 2069560, 2435071, 2532824, 2897384, 3166030, 3621730, 4870142, 6332060, 7243460, 9740284, 12175355, 12664120, 14486920, 17045497, 19480568, 24350710, 34090994, 48701420, 68181988, 75487201, 85227485, 97402840, 136363976, 150974402, 170454970, 301948804, 340909940, 377436005, 528410407, 603897608, 681819880, 754872010, 1056820814, 1509744020, 2113641628, 2642052035, 3019488040, 4227283256, 5284104070, 10568208140, 21136416280]

約数ペア:

[(1, 21136416280), (2, 10568208140), (4, 5284104070), (5, 4227283256), (7, 3019488040), (8, 2642052035), (10, 2113641628), (14, 1509744020), (20, 1056820814), (28, 754872010), (31, 681819880), (35, 603897608), (40, 528410407), (56, 377436005), (62, 340909940), (70, 301948804), (124, 170454970), (140, 150974402), (155, 136363976), (217, 97402840), (248, 85227485), (280, 75487201), (310, 68181988), (434, 48701420), (620, 34090994), (868, 24350710), (1085, 19480568), (1240, 17045497), (1459, 14486920), (1669, 12664120), (1736, 12175355), (2170, 9740284), (2918, 7243460), (3338, 6332060), (4340, 4870142), (5836, 3621730), (6676, 3166030), (7295, 2897384), (8345, 2532824), (8680, 2435071), (10213, 2069560), (11672, 1810865), (11683, 1809160), (13352, 1583015), (14590, 1448692), (16690, 1266412), (20426, 1034780), (23366, 904580), (29180, 724346), (33380, 633206), (40852, 517390), (45229, 467320), (46732, 452290), (51065, 413912), (51739, 408520), (58360, 362173), (58415, 361832), (66760, 316603), (81704, 258695), (90458, 233660), (93464, 226145), (102130, 206956), (103478, 204260), (116830, 180916)]