20780490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{36457}}^1$

素因数の和:36486

約数の個数: 32

約数和(自身を含む): 52499520

約数和(自身を除く): 31719030

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570, 36457, 72914, 109371, 182285, 218742, 364570, 546855, 692683, 1093710, 1385366, 2078049, 3463415, 4156098, 6926830, 10390245, 20780490]

約数ペア:

[(1, 20780490), (2, 10390245), (3, 6926830), (5, 4156098), (6, 3463415), (10, 2078049), (15, 1385366), (19, 1093710), (30, 692683), (38, 546855), (57, 364570), (95, 218742), (114, 182285), (190, 109371), (285, 72914), (570, 36457)]