890403890

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1021}}^1\times {\mathrm{2357}}^1$

素因数の和:3422

約数の個数: 32

約数和(自身を含む): 1648355184

約数和(自身を除く): 757951294

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 1021, 2042, 2357, 4714, 5105, 10210, 11785, 23570, 37777, 75554, 87209, 174418, 188885, 377770, 436045, 872090, 2406497, 4812994, 12032485, 24064970, 89040389, 178080778, 445201945, 890403890]

約数ペア:

[(1, 890403890), (2, 445201945), (5, 178080778), (10, 89040389), (37, 24064970), (74, 12032485), (185, 4812994), (370, 2406497), (1021, 872090), (2042, 436045), (2357, 377770), (4714, 188885), (5105, 174418), (10210, 87209), (11785, 75554), (23570, 37777)]