1564040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 3582360

約数和(自身を除く): 2018320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 641, 1220, 1282, 2440, 2564, 3205, 5128, 6410, 12820, 25640, 39101, 78202, 156404, 195505, 312808, 391010, 782020, 1564040]

約数ペア:

[(1, 1564040), (2, 782020), (4, 391010), (5, 312808), (8, 195505), (10, 156404), (20, 78202), (40, 39101), (61, 25640), (122, 12820), (244, 6410), (305, 5128), (488, 3205), (610, 2564), (641, 2440), (1220, 1282)]