145879240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280537}}^1$

素因数の和:280561

約数の個数: 32

約数和(自身を含む): 353477880

約数和(自身を除く): 207598640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 280537, 561074, 1122148, 1402685, 2244296, 2805370, 3646981, 5610740, 7293962, 11221480, 14587924, 18234905, 29175848, 36469810, 72939620, 145879240]

約数ペア:

[(1, 145879240), (2, 72939620), (4, 36469810), (5, 29175848), (8, 18234905), (10, 14587924), (13, 11221480), (20, 7293962), (26, 5610740), (40, 3646981), (52, 2805370), (65, 2244296), (104, 1402685), (130, 1122148), (260, 561074), (520, 280537)]