280806424

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{2239}}^1$

素因数の和:2563

約数の個数: 32

約数和(自身を含む): 537465600

約数和(自身を除く): 256659176

約数列:

[1, 2, 4, 8, 61, 122, 244, 257, 488, 514, 1028, 2056, 2239, 4478, 8956, 15677, 17912, 31354, 62708, 125416, 136579, 273158, 546316, 575423, 1092632, 1150846, 2301692, 4603384, 35100803, 70201606, 140403212, 280806424]

約数ペア:

[(1, 280806424), (2, 140403212), (4, 70201606), (8, 35100803), (61, 4603384), (122, 2301692), (244, 1150846), (257, 1092632), (488, 575423), (514, 546316), (1028, 273158), (2056, 136579), (2239, 125416), (4478, 62708), (8956, 31354), (15677, 17912)]