728620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2143}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 1620864

約数和(自身を除く): 892244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2143, 4286, 8572, 10715, 21430, 36431, 42860, 72862, 145724, 182155, 364310, 728620]

約数ペア:

[(1, 728620), (2, 364310), (4, 182155), (5, 145724), (10, 72862), (17, 42860), (20, 36431), (34, 21430), (68, 10715), (85, 8572), (170, 4286), (340, 2143)]