257681008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{42719}}^1$

素因数の和:42769

約数の個数: 40

約数和(自身を含む): 556214400

約数和(自身を除く): 298533392

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 6032, 42719, 85438, 170876, 341752, 555347, 683504, 1110694, 1238851, 2221388, 2477702, 4442776, 4955404, 8885552, 9910808, 16105063, 19821616, 32210126, 64420252, 128840504, 257681008]

約数ペア:

[(1, 257681008), (2, 128840504), (4, 64420252), (8, 32210126), (13, 19821616), (16, 16105063), (26, 9910808), (29, 8885552), (52, 4955404), (58, 4442776), (104, 2477702), (116, 2221388), (208, 1238851), (232, 1110694), (377, 683504), (464, 555347), (754, 341752), (1508, 170876), (3016, 85438), (6032, 42719)]