20090180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1723}}^1$

素因数の和:1796

約数の個数: 48

約数和(自身を含む): 46920384

約数和(自身を除く): 26830204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1723, 2332, 2915, 3446, 5830, 6892, 8615, 11660, 17230, 18953, 34460, 37906, 75812, 91319, 94765, 182638, 189530, 365276, 379060, 456595, 913190, 1004509, 1826380, 2009018, 4018036, 5022545, 10045090, 20090180]

約数ペア:

[(1, 20090180), (2, 10045090), (4, 5022545), (5, 4018036), (10, 2009018), (11, 1826380), (20, 1004509), (22, 913190), (44, 456595), (53, 379060), (55, 365276), (106, 189530), (110, 182638), (212, 94765), (220, 91319), (265, 75812), (530, 37906), (583, 34460), (1060, 18953), (1166, 17230), (1723, 11660), (2332, 8615), (2915, 6892), (3446, 5830)]