31088980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1097}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 71018640

約数和(自身を除く): 39929660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1097, 1417, 2180, 2194, 2834, 4388, 5485, 5668, 7085, 10970, 14170, 14261, 21940, 28340, 28522, 57044, 71305, 119573, 142610, 239146, 285220, 478292, 597865, 1195730, 1554449, 2391460, 3108898, 6217796, 7772245, 15544490, 31088980]

約数ペア:

[(1, 31088980), (2, 15544490), (4, 7772245), (5, 6217796), (10, 3108898), (13, 2391460), (20, 1554449), (26, 1195730), (52, 597865), (65, 478292), (109, 285220), (130, 239146), (218, 142610), (260, 119573), (436, 71305), (545, 57044), (1090, 28522), (1097, 28340), (1417, 21940), (2180, 14261), (2194, 14170), (2834, 10970), (4388, 7085), (5485, 5668)]