204849860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2377}}^1$

素因数の和:2556

約数の個数: 48

約数和(自身を含む): 447444480

約数和(自身を除く): 242594620

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2377, 2780, 4309, 4754, 8618, 9508, 11885, 17236, 21545, 23770, 43090, 47540, 73687, 86180, 147374, 294748, 330403, 368435, 660806, 736870, 1321612, 1473740, 1652015, 3304030, 6608060, 10242493, 20484986, 40969972, 51212465, 102424930, 204849860]

約数ペア:

[(1, 204849860), (2, 102424930), (4, 51212465), (5, 40969972), (10, 20484986), (20, 10242493), (31, 6608060), (62, 3304030), (124, 1652015), (139, 1473740), (155, 1321612), (278, 736870), (310, 660806), (556, 368435), (620, 330403), (695, 294748), (1390, 147374), (2377, 86180), (2780, 73687), (4309, 47540), (4754, 43090), (8618, 23770), (9508, 21545), (11885, 17236)]