639294885

素因数分解:

$3^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{9043}}^1$

素因数の和:10625

約数の個数: 24

約数和(自身を含む): 1108939104

約数和(自身を除く): 469644219

約数列:

[1, 3, 5, 9, 15, 45, 1571, 4713, 7855, 9043, 14139, 23565, 27129, 45215, 70695, 81387, 135645, 406935, 14206553, 42619659, 71032765, 127858977, 213098295, 639294885]

約数ペア:

[(1, 639294885), (3, 213098295), (5, 127858977), (9, 71032765), (15, 42619659), (45, 14206553), (1571, 406935), (4713, 135645), (7855, 81387), (9043, 70695), (14139, 45215), (23565, 27129)]