178049240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1697}}^1$

素因数の和:1812

約数の個数: 64

約数和(自身を含む): 416892960

約数和(自身を除く): 238843720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 215, 244, 305, 344, 430, 488, 610, 860, 1220, 1697, 1720, 2440, 2623, 3394, 5246, 6788, 8485, 10492, 13115, 13576, 16970, 20984, 26230, 33940, 52460, 67880, 72971, 103517, 104920, 145942, 207034, 291884, 364855, 414068, 517585, 583768, 729710, 828136, 1035170, 1459420, 2070340, 2918840, 4140680, 4451231, 8902462, 17804924, 22256155, 35609848, 44512310, 89024620, 178049240]

約数ペア:

[(1, 178049240), (2, 89024620), (4, 44512310), (5, 35609848), (8, 22256155), (10, 17804924), (20, 8902462), (40, 4451231), (43, 4140680), (61, 2918840), (86, 2070340), (122, 1459420), (172, 1035170), (215, 828136), (244, 729710), (305, 583768), (344, 517585), (430, 414068), (488, 364855), (610, 291884), (860, 207034), (1220, 145942), (1697, 104920), (1720, 103517), (2440, 72971), (2623, 67880), (3394, 52460), (5246, 33940), (6788, 26230), (8485, 20984), (10492, 16970), (13115, 13576)]