20299885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 27141120

約数和(自身を除く): 6841235

約数列:

[1, 5, 19, 31, 61, 95, 113, 155, 305, 565, 589, 1159, 1891, 2147, 2945, 3503, 5795, 6893, 9455, 10735, 17515, 34465, 35929, 66557, 130967, 179645, 213683, 332785, 654835, 1068415, 4059977, 20299885]

約数ペア:

[(1, 20299885), (5, 4059977), (19, 1068415), (31, 654835), (61, 332785), (95, 213683), (113, 179645), (155, 130967), (305, 66557), (565, 35929), (589, 34465), (1159, 17515), (1891, 10735), (2147, 9455), (2945, 6893), (3503, 5795)]