77904080

素因数分解:

$2^4\times 5^1\times {\mathrm{973801}}^1$

素因数の和:973814

約数の個数: 20

約数和(自身を含む): 181127172

約数和(自身を除く): 103223092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 973801, 1947602, 3895204, 4869005, 7790408, 9738010, 15580816, 19476020, 38952040, 77904080]

約数ペア:

[(1, 77904080), (2, 38952040), (4, 19476020), (5, 15580816), (8, 9738010), (10, 7790408), (16, 4869005), (20, 3895204), (40, 1947602), (80, 973801)]