84640280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124471}}^1$

素因数の和:124499

約数の個数: 32

約数和(自身を含む): 201644640

約数和(自身を除く): 117004360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 124471, 248942, 497884, 622355, 995768, 1244710, 2116007, 2489420, 4232014, 4978840, 8464028, 10580035, 16928056, 21160070, 42320140, 84640280]

約数ペア:

[(1, 84640280), (2, 42320140), (4, 21160070), (5, 16928056), (8, 10580035), (10, 8464028), (17, 4978840), (20, 4232014), (34, 2489420), (40, 2116007), (68, 1244710), (85, 995768), (136, 622355), (170, 497884), (340, 248942), (680, 124471)]