178015930

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1\times {\mathrm{431}}^1$

素因数の和:942

約数の個数: 32

約数和(自身を含む): 325099008

約数和(自身を除く): 147083078

約数列:

[1, 2, 5, 10, 103, 206, 401, 431, 515, 802, 862, 1030, 2005, 2155, 4010, 4310, 41303, 44393, 82606, 88786, 172831, 206515, 221965, 345662, 413030, 443930, 864155, 1728310, 17801593, 35603186, 89007965, 178015930]

約数ペア:

[(1, 178015930), (2, 89007965), (5, 35603186), (10, 17801593), (103, 1728310), (206, 864155), (401, 443930), (431, 413030), (515, 345662), (802, 221965), (862, 206515), (1030, 172831), (2005, 88786), (2155, 82606), (4010, 44393), (4310, 41303)]