520078480

素因数分解:

$2^4\times 5^1\times {\mathrm{6500981}}^1$

素因数の和:6500994

約数の個数: 20

約数和(自身を含む): 1209182652

約数和(自身を除く): 689104172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6500981, 13001962, 26003924, 32504905, 52007848, 65009810, 104015696, 130019620, 260039240, 520078480]

約数ペア:

[(1, 520078480), (2, 260039240), (4, 130019620), (5, 104015696), (8, 65009810), (10, 52007848), (16, 32504905), (20, 26003924), (40, 13001962), (80, 6500981)]