20184968

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 39360000

約数和(自身を除く): 19175032

約数列:

[1, 2, 4, 8, 31, 62, 124, 199, 248, 398, 409, 796, 818, 1592, 1636, 3272, 6169, 12338, 12679, 24676, 25358, 49352, 50716, 81391, 101432, 162782, 325564, 651128, 2523121, 5046242, 10092484, 20184968]

約数ペア:

[(1, 20184968), (2, 10092484), (4, 5046242), (8, 2523121), (31, 651128), (62, 325564), (124, 162782), (199, 101432), (248, 81391), (398, 50716), (409, 49352), (796, 25358), (818, 24676), (1592, 12679), (1636, 12338), (3272, 6169)]