40641770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1571}}^1$

素因数の和:1790

約数の個数: 32

約数和(自身を含む): 79228800

約数和(自身を除く): 38587030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1571, 1990, 2587, 3142, 5174, 7855, 12935, 15710, 20423, 25870, 40846, 102115, 204230, 312629, 625258, 1563145, 3126290, 4064177, 8128354, 20320885, 40641770]

約数ペア:

[(1, 40641770), (2, 20320885), (5, 8128354), (10, 4064177), (13, 3126290), (26, 1563145), (65, 625258), (130, 312629), (199, 204230), (398, 102115), (995, 40846), (1571, 25870), (1990, 20423), (2587, 15710), (3142, 12935), (5174, 7855)]