157688740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 376104960

約数和(自身を除く): 218416220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 79, 86, 110, 158, 172, 211, 215, 220, 316, 395, 422, 430, 473, 790, 844, 860, 869, 946, 1055, 1580, 1738, 1892, 2110, 2321, 2365, 3397, 3476, 4220, 4345, 4642, 4730, 6794, 8690, 9073, 9284, 9460, 11605, 13588, 16669, 16985, 17380, 18146, 23210, 33338, 33970, 36292, 37367, 45365, 46420, 66676, 67940, 74734, 83345, 90730, 99803, 149468, 166690, 181460, 183359, 186835, 199606, 333380, 366718, 373670, 399212, 499015, 716767, 733436, 747340, 916795, 998030, 1433534, 1833590, 1996060, 2867068, 3583835, 3667180, 7167670, 7884437, 14335340, 15768874, 31537748, 39422185, 78844370, 157688740]

約数ペア:

[(1, 157688740), (2, 78844370), (4, 39422185), (5, 31537748), (10, 15768874), (11, 14335340), (20, 7884437), (22, 7167670), (43, 3667180), (44, 3583835), (55, 2867068), (79, 1996060), (86, 1833590), (110, 1433534), (158, 998030), (172, 916795), (211, 747340), (215, 733436), (220, 716767), (316, 499015), (395, 399212), (422, 373670), (430, 366718), (473, 333380), (790, 199606), (844, 186835), (860, 183359), (869, 181460), (946, 166690), (1055, 149468), (1580, 99803), (1738, 90730), (1892, 83345), (2110, 74734), (2321, 67940), (2365, 66676), (3397, 46420), (3476, 45365), (4220, 37367), (4345, 36292), (4642, 33970), (4730, 33338), (6794, 23210), (8690, 18146), (9073, 17380), (9284, 16985), (9460, 16669), (11605, 13588)]