64449820

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21341}}^1$

素因数の和:21501

約数の個数: 24

約数和(自身を含む): 136247328

約数和(自身を除く): 71797508

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 21341, 42682, 85364, 106705, 213410, 426820, 3222491, 6444982, 12889964, 16112455, 32224910, 64449820]

約数ペア:

[(1, 64449820), (2, 32224910), (4, 16112455), (5, 12889964), (10, 6444982), (20, 3222491), (151, 426820), (302, 213410), (604, 106705), (755, 85364), (1510, 42682), (3020, 21341)]