20393670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2131}}^1$

素因数の和:2181

約数の個数: 64

約数和(自身を含む): 55261440

約数和(自身を除く): 34867770

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 145, 165, 174, 290, 319, 330, 435, 638, 870, 957, 1595, 1914, 2131, 3190, 4262, 4785, 6393, 9570, 10655, 12786, 21310, 23441, 31965, 46882, 61799, 63930, 70323, 117205, 123598, 140646, 185397, 234410, 308995, 351615, 370794, 617990, 679789, 703230, 926985, 1359578, 1853970, 2039367, 3398945, 4078734, 6797890, 10196835, 20393670]

約数ペア:

[(1, 20393670), (2, 10196835), (3, 6797890), (5, 4078734), (6, 3398945), (10, 2039367), (11, 1853970), (15, 1359578), (22, 926985), (29, 703230), (30, 679789), (33, 617990), (55, 370794), (58, 351615), (66, 308995), (87, 234410), (110, 185397), (145, 140646), (165, 123598), (174, 117205), (290, 70323), (319, 63930), (330, 61799), (435, 46882), (638, 31965), (870, 23441), (957, 21310), (1595, 12786), (1914, 10655), (2131, 9570), (3190, 6393), (4262, 4785)]