18622960

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1777}}^1$

素因数の和:1921

約数の個数: 40

約数和(自身を含む): 43653456

約数和(自身を除く): 25030496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1777, 2096, 2620, 3554, 5240, 7108, 8885, 10480, 14216, 17770, 28432, 35540, 71080, 142160, 232787, 465574, 931148, 1163935, 1862296, 2327870, 3724592, 4655740, 9311480, 18622960]

約数ペア:

[(1, 18622960), (2, 9311480), (4, 4655740), (5, 3724592), (8, 2327870), (10, 1862296), (16, 1163935), (20, 931148), (40, 465574), (80, 232787), (131, 142160), (262, 71080), (524, 35540), (655, 28432), (1048, 17770), (1310, 14216), (1777, 10480), (2096, 8885), (2620, 7108), (3554, 5240)]