8729240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16787}}^1$

素因数の和:16811

約数の個数: 32

約数和(自身を含む): 21152880

約数和(自身を除く): 12423640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16787, 33574, 67148, 83935, 134296, 167870, 218231, 335740, 436462, 671480, 872924, 1091155, 1745848, 2182310, 4364620, 8729240]

約数ペア:

[(1, 8729240), (2, 4364620), (4, 2182310), (5, 1745848), (8, 1091155), (10, 872924), (13, 671480), (20, 436462), (26, 335740), (40, 218231), (52, 167870), (65, 134296), (104, 83935), (130, 67148), (260, 33574), (520, 16787)]