66401245

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2\times {\mathrm{83}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 83891808

約数和(自身を除く): 17490563

約数列:

[1, 5, 43, 61, 83, 215, 305, 415, 2623, 3569, 3721, 5063, 13115, 17845, 18605, 25315, 160003, 217709, 308843, 800015, 1088545, 1544215, 13280249, 66401245]

約数ペア:

[(1, 66401245), (5, 13280249), (43, 1544215), (61, 1088545), (83, 800015), (215, 308843), (305, 217709), (415, 160003), (2623, 25315), (3569, 18605), (3721, 17845), (5063, 13115)]