720197860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{10039}}^1$

素因数の和:10276

約数の個数: 48

約数和(自身を含む): 1609130880

約数和(自身を除く): 888933020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 211, 340, 422, 844, 1055, 2110, 3587, 4220, 7174, 10039, 14348, 17935, 20078, 35870, 40156, 50195, 71740, 100390, 170663, 200780, 341326, 682652, 853315, 1706630, 2118229, 3413260, 4236458, 8472916, 10591145, 21182290, 36009893, 42364580, 72019786, 144039572, 180049465, 360098930, 720197860]

約数ペア:

[(1, 720197860), (2, 360098930), (4, 180049465), (5, 144039572), (10, 72019786), (17, 42364580), (20, 36009893), (34, 21182290), (68, 10591145), (85, 8472916), (170, 4236458), (211, 3413260), (340, 2118229), (422, 1706630), (844, 853315), (1055, 682652), (2110, 341326), (3587, 200780), (4220, 170663), (7174, 100390), (10039, 71740), (14348, 50195), (17935, 40156), (20078, 35870)]