81317640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{677647}}^1$

素因数の和:677661

約数の個数: 32

約数和(自身を含む): 243953280

約数和(自身を除く): 162635640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 677647, 1355294, 2032941, 2710588, 3388235, 4065882, 5421176, 6776470, 8131764, 10164705, 13552940, 16263528, 20329410, 27105880, 40658820, 81317640]

約数ペア:

[(1, 81317640), (2, 40658820), (3, 27105880), (4, 20329410), (5, 16263528), (6, 13552940), (8, 10164705), (10, 8131764), (12, 6776470), (15, 5421176), (20, 4065882), (24, 3388235), (30, 2710588), (40, 2032941), (60, 1355294), (120, 677647)]