80385850

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{8161}}^1$

素因数の和:8370

約数の個数: 24

約数和(自身を含む): 150295068

約数和(自身を除く): 69909218

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 4925, 8161, 9850, 16322, 40805, 81610, 204025, 408050, 1607717, 3215434, 8038585, 16077170, 40192925, 80385850]

約数ペア:

[(1, 80385850), (2, 40192925), (5, 16077170), (10, 8038585), (25, 3215434), (50, 1607717), (197, 408050), (394, 204025), (985, 81610), (1970, 40805), (4925, 16322), (8161, 9850)]