208524040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{306653}}^1$

素因数の和:306681

約数の個数: 32

約数和(自身を含む): 496779480

約数和(自身を除く): 288255440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 306653, 613306, 1226612, 1533265, 2453224, 3066530, 5213101, 6133060, 10426202, 12266120, 20852404, 26065505, 41704808, 52131010, 104262020, 208524040]

約数ペア:

[(1, 208524040), (2, 104262020), (4, 52131010), (5, 41704808), (8, 26065505), (10, 20852404), (17, 12266120), (20, 10426202), (34, 6133060), (40, 5213101), (68, 3066530), (85, 2453224), (136, 1533265), (170, 1226612), (340, 613306), (680, 306653)]