1639390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2309}}^1$

素因数の和:2387

約数の個数: 16

約数和(自身を含む): 2993760

約数和(自身を除く): 1354370

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 2309, 4618, 11545, 23090, 163939, 327878, 819695, 1639390]

約数ペア:

[(1, 1639390), (2, 819695), (5, 327878), (10, 163939), (71, 23090), (142, 11545), (355, 4618), (710, 2309)]