77868520

素因数分解:

$2^3\times 5^1\times {\mathrm{1946713}}^1$

素因数の和:1946724

約数の個数: 16

約数和(自身を含む): 175204260

約数和(自身を除く): 97335740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1946713, 3893426, 7786852, 9733565, 15573704, 19467130, 38934260, 77868520]

約数ペア:

[(1, 77868520), (2, 38934260), (4, 19467130), (5, 15573704), (8, 9733565), (10, 7786852), (20, 3893426), (40, 1946713)]