521106920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{1231}}^1$

素因数の和:1818

約数の個数: 64

約数和(自身を含む): 1237420800

約数和(自身を除く): 716313880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 557, 760, 1114, 1231, 2228, 2462, 2785, 4456, 4924, 5570, 6155, 9848, 10583, 11140, 12310, 21166, 22280, 23389, 24620, 42332, 46778, 49240, 52915, 84664, 93556, 105830, 116945, 187112, 211660, 233890, 423320, 467780, 685667, 935560, 1371334, 2742668, 3428335, 5485336, 6856670, 13027673, 13713340, 26055346, 27426680, 52110692, 65138365, 104221384, 130276730, 260553460, 521106920]

約数ペア:

[(1, 521106920), (2, 260553460), (4, 130276730), (5, 104221384), (8, 65138365), (10, 52110692), (19, 27426680), (20, 26055346), (38, 13713340), (40, 13027673), (76, 6856670), (95, 5485336), (152, 3428335), (190, 2742668), (380, 1371334), (557, 935560), (760, 685667), (1114, 467780), (1231, 423320), (2228, 233890), (2462, 211660), (2785, 187112), (4456, 116945), (4924, 105830), (5570, 93556), (6155, 84664), (9848, 52915), (10583, 49240), (11140, 46778), (12310, 42332), (21166, 24620), (22280, 23389)]