79884380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{65479}}^1$

素因数の和:65549

約数の個数: 24

約数和(自身を含む): 170509920

約数和(自身を除く): 90625540

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 65479, 130958, 261916, 327395, 654790, 1309580, 3994219, 7988438, 15976876, 19971095, 39942190, 79884380]

約数ペア:

[(1, 79884380), (2, 39942190), (4, 19971095), (5, 15976876), (10, 7988438), (20, 3994219), (61, 1309580), (122, 654790), (244, 327395), (305, 261916), (610, 130958), (1220, 65479)]