1309820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 2788800

約数和(自身を除く): 1478980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 829, 1580, 1658, 3316, 4145, 8290, 16580, 65491, 130982, 261964, 327455, 654910, 1309820]

約数ペア:

[(1, 1309820), (2, 654910), (4, 327455), (5, 261964), (10, 130982), (20, 65491), (79, 16580), (158, 8290), (316, 4145), (395, 3316), (790, 1658), (829, 1580)]