20945944

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 19374056

約数列:

[1, 2, 4, 8, 59, 118, 199, 223, 236, 398, 446, 472, 796, 892, 1592, 1784, 11741, 13157, 23482, 26314, 44377, 46964, 52628, 88754, 93928, 105256, 177508, 355016, 2618243, 5236486, 10472972, 20945944]

約数ペア:

[(1, 20945944), (2, 10472972), (4, 5236486), (8, 2618243), (59, 355016), (118, 177508), (199, 105256), (223, 93928), (236, 88754), (398, 52628), (446, 46964), (472, 44377), (796, 26314), (892, 23482), (1592, 13157), (1784, 11741)]