19690419640

素因数分解:

$2^3\times 5^1\times {\mathrm{1429}}^1\times {\mathrm{344479}}^1$

素因数の和:345919

約数の個数: 32

約数和(自身を含む): 44334576000

約数和(自身を除く): 24644156360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1429, 2858, 5716, 7145, 11432, 14290, 28580, 57160, 344479, 688958, 1377916, 1722395, 2755832, 3444790, 6889580, 13779160, 492260491, 984520982, 1969041964, 2461302455, 3938083928, 4922604910, 9845209820, 19690419640]

約数ペア:

[(1, 19690419640), (2, 9845209820), (4, 4922604910), (5, 3938083928), (8, 2461302455), (10, 1969041964), (20, 984520982), (40, 492260491), (1429, 13779160), (2858, 6889580), (5716, 3444790), (7145, 2755832), (11432, 1722395), (14290, 1377916), (28580, 688958), (57160, 344479)]