81631160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{877}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 199130400

約数和(自身を除く): 117499240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 179, 260, 358, 520, 716, 877, 895, 1432, 1754, 1790, 2327, 3508, 3580, 4385, 4654, 7016, 7160, 8770, 9308, 11401, 11635, 17540, 18616, 22802, 23270, 35080, 45604, 46540, 57005, 91208, 93080, 114010, 156983, 228020, 313966, 456040, 627932, 784915, 1255864, 1569830, 2040779, 3139660, 4081558, 6279320, 8163116, 10203895, 16326232, 20407790, 40815580, 81631160]

約数ペア:

[(1, 81631160), (2, 40815580), (4, 20407790), (5, 16326232), (8, 10203895), (10, 8163116), (13, 6279320), (20, 4081558), (26, 3139660), (40, 2040779), (52, 1569830), (65, 1255864), (104, 784915), (130, 627932), (179, 456040), (260, 313966), (358, 228020), (520, 156983), (716, 114010), (877, 93080), (895, 91208), (1432, 57005), (1754, 46540), (1790, 45604), (2327, 35080), (3508, 23270), (3580, 22802), (4385, 18616), (4654, 17540), (7016, 11635), (7160, 11401), (8770, 9308)]