4966778980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{165449}}^1$

素因数の和:165556

約数の個数: 48

約数和(自身を含む): 11118240000

約数和(自身を除く): 6151461020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020, 165449, 330898, 661796, 827245, 1654490, 3143531, 3308980, 6287062, 12574124, 13070471, 15717655, 26140942, 31435310, 52281884, 62870620, 65352355, 130704710, 248338949, 261409420, 496677898, 993355796, 1241694745, 2483389490, 4966778980]

約数ペア:

[(1, 4966778980), (2, 2483389490), (4, 1241694745), (5, 993355796), (10, 496677898), (19, 261409420), (20, 248338949), (38, 130704710), (76, 65352355), (79, 62870620), (95, 52281884), (158, 31435310), (190, 26140942), (316, 15717655), (380, 13070471), (395, 12574124), (790, 6287062), (1501, 3308980), (1580, 3143531), (3002, 1654490), (6004, 827245), (7505, 661796), (15010, 330898), (30020, 165449)]