2021611540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7775429}}^1$

素因数の和:7775451

約数の個数: 24

約数和(自身を含む): 4571952840

約数和(自身を除く): 2550341300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7775429, 15550858, 31101716, 38877145, 77754290, 101080577, 155508580, 202161154, 404322308, 505402885, 1010805770, 2021611540]

約数ペア:

[(1, 2021611540), (2, 1010805770), (4, 505402885), (5, 404322308), (10, 202161154), (13, 155508580), (20, 101080577), (26, 77754290), (52, 38877145), (65, 31101716), (130, 15550858), (260, 7775429)]