31139680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1400

約数の個数: 96

約数和(自身を含む): 86492448

約数和(自身を除く): 55352768

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 880, 1040, 1144, 1361, 1430, 1760, 2080, 2288, 2722, 2860, 4576, 5444, 5720, 6805, 10888, 11440, 13610, 14971, 17693, 21776, 22880, 27220, 29942, 35386, 43552, 54440, 59884, 70772, 74855, 88465, 108880, 119768, 141544, 149710, 176930, 194623, 217760, 239536, 283088, 299420, 353860, 389246, 479072, 566176, 598840, 707720, 778492, 973115, 1197680, 1415440, 1556984, 1946230, 2395360, 2830880, 3113968, 3892460, 6227936, 7784920, 15569840, 31139680]

約数ペア:

[(1, 31139680), (2, 15569840), (4, 7784920), (5, 6227936), (8, 3892460), (10, 3113968), (11, 2830880), (13, 2395360), (16, 1946230), (20, 1556984), (22, 1415440), (26, 1197680), (32, 973115), (40, 778492), (44, 707720), (52, 598840), (55, 566176), (65, 479072), (80, 389246), (88, 353860), (104, 299420), (110, 283088), (130, 239536), (143, 217760), (160, 194623), (176, 176930), (208, 149710), (220, 141544), (260, 119768), (286, 108880), (352, 88465), (416, 74855), (440, 70772), (520, 59884), (572, 54440), (715, 43552), (880, 35386), (1040, 29942), (1144, 27220), (1361, 22880), (1430, 21776), (1760, 17693), (2080, 14971), (2288, 13610), (2722, 11440), (2860, 10888), (4576, 6805), (5444, 5720)]