204509240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{393287}}^1$

素因数の和:393311

約数の個数: 32

約数和(自身を含む): 495542880

約数和(自身を除く): 291033640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 393287, 786574, 1573148, 1966435, 3146296, 3932870, 5112731, 7865740, 10225462, 15731480, 20450924, 25563655, 40901848, 51127310, 102254620, 204509240]

約数ペア:

[(1, 204509240), (2, 102254620), (4, 51127310), (5, 40901848), (8, 25563655), (10, 20450924), (13, 15731480), (20, 10225462), (26, 7865740), (40, 5112731), (52, 3932870), (65, 3146296), (104, 1966435), (130, 1573148), (260, 786574), (520, 393287)]