290020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{853}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 645624

約数和(自身を除く): 355604

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 853, 1706, 3412, 4265, 8530, 14501, 17060, 29002, 58004, 72505, 145010, 290020]

約数ペア:

[(1, 290020), (2, 145010), (4, 72505), (5, 58004), (10, 29002), (17, 17060), (20, 14501), (34, 8530), (68, 4265), (85, 3412), (170, 1706), (340, 853)]