64605520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{16481}}^1$

素因数の和:16508

約数の個数: 60

約数和(自身を含む): 174742164

約数和(自身を除く): 110136644

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 16481, 32962, 65924, 82405, 115367, 131848, 164810, 230734, 263696, 329620, 461468, 576835, 659240, 807569, 922936, 1153670, 1318480, 1615138, 1845872, 2307340, 3230276, 4037845, 4614680, 6460552, 8075690, 9229360, 12921104, 16151380, 32302760, 64605520]

約数ペア:

[(1, 64605520), (2, 32302760), (4, 16151380), (5, 12921104), (7, 9229360), (8, 8075690), (10, 6460552), (14, 4614680), (16, 4037845), (20, 3230276), (28, 2307340), (35, 1845872), (40, 1615138), (49, 1318480), (56, 1153670), (70, 922936), (80, 807569), (98, 659240), (112, 576835), (140, 461468), (196, 329620), (245, 263696), (280, 230734), (392, 164810), (490, 131848), (560, 115367), (784, 82405), (980, 65924), (1960, 32962), (3920, 16481)]