81328160

素因数分解:

$2^5\times 5^1\times {\mathrm{508301}}^1$

素因数の和:508316

約数の個数: 24

約数和(自身を含む): 192138156

約数和(自身を除く): 110809996

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 508301, 1016602, 2033204, 2541505, 4066408, 5083010, 8132816, 10166020, 16265632, 20332040, 40664080, 81328160]

約数ペア:

[(1, 81328160), (2, 40664080), (4, 20332040), (5, 16265632), (8, 10166020), (10, 8132816), (16, 5083010), (20, 4066408), (32, 2541505), (40, 2033204), (80, 1016602), (160, 508301)]