256960

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1$

素因数の和:101

約数の個数: 56

約数和(自身を含む): 676656

約数和(自身を除く): 419696

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 73, 80, 88, 110, 146, 160, 176, 220, 292, 320, 352, 365, 440, 584, 704, 730, 803, 880, 1168, 1460, 1606, 1760, 2336, 2920, 3212, 3520, 4015, 4672, 5840, 6424, 8030, 11680, 12848, 16060, 23360, 25696, 32120, 51392, 64240, 128480, 256960]

約数ペア:

[(1, 256960), (2, 128480), (4, 64240), (5, 51392), (8, 32120), (10, 25696), (11, 23360), (16, 16060), (20, 12848), (22, 11680), (32, 8030), (40, 6424), (44, 5840), (55, 4672), (64, 4015), (73, 3520), (80, 3212), (88, 2920), (110, 2336), (146, 1760), (160, 1606), (176, 1460), (220, 1168), (292, 880), (320, 803), (352, 730), (365, 704), (440, 584)]