257788990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{2711}}^1$

素因数の和:3012

約数の個数: 32

約数和(自身を含む): 478592064

約数和(自身を除く): 220803074

約数列:

[1, 2, 5, 10, 37, 74, 185, 257, 370, 514, 1285, 2570, 2711, 5422, 9509, 13555, 19018, 27110, 47545, 95090, 100307, 200614, 501535, 696727, 1003070, 1393454, 3483635, 6967270, 25778899, 51557798, 128894495, 257788990]

約数ペア:

[(1, 257788990), (2, 128894495), (5, 51557798), (10, 25778899), (37, 6967270), (74, 3483635), (185, 1393454), (257, 1003070), (370, 696727), (514, 501535), (1285, 200614), (2570, 100307), (2711, 95090), (5422, 47545), (9509, 27110), (13555, 19018)]