1299740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4999}}^1$

素因数の和:5021

約数の個数: 24

約数和(自身を含む): 2940000

約数和(自身を除く): 1640260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4999, 9998, 19996, 24995, 49990, 64987, 99980, 129974, 259948, 324935, 649870, 1299740]

約数ペア:

[(1, 1299740), (2, 649870), (4, 324935), (5, 259948), (10, 129974), (13, 99980), (20, 64987), (26, 49990), (52, 24995), (65, 19996), (130, 9998), (260, 4999)]