318970405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{288661}}^1$

素因数の和:288696

約数の個数: 16

約数和(自身を含む): 436456944

約数和(自身を除く): 117486539

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 288661, 1443305, 3752593, 4907237, 18762965, 24536185, 63794081, 318970405]

約数ペア:

[(1, 318970405), (5, 63794081), (13, 24536185), (17, 18762965), (65, 4907237), (85, 3752593), (221, 1443305), (1105, 288661)]