39491980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16319}}^1$

素因数の和:16350

約数の個数: 36

約数和(自身を含む): 91163520

約数和(自身を除く): 51671540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 16319, 32638, 65276, 81595, 163190, 179509, 326380, 359018, 718036, 897545, 1795090, 1974599, 3590180, 3949198, 7898396, 9872995, 19745990, 39491980]

約数ペア:

[(1, 39491980), (2, 19745990), (4, 9872995), (5, 7898396), (10, 3949198), (11, 3590180), (20, 1974599), (22, 1795090), (44, 897545), (55, 718036), (110, 359018), (121, 326380), (220, 179509), (242, 163190), (484, 81595), (605, 65276), (1210, 32638), (2420, 16319)]