131234080

素因数分解:

$2^5\times 5^1\times {\mathrm{820213}}^1$

素因数の和:820228

約数の個数: 24

約数和(自身を含む): 310040892

約数和(自身を除く): 178806812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 820213, 1640426, 3280852, 4101065, 6561704, 8202130, 13123408, 16404260, 26246816, 32808520, 65617040, 131234080]

約数ペア:

[(1, 131234080), (2, 65617040), (4, 32808520), (5, 26246816), (8, 16404260), (10, 13123408), (16, 8202130), (20, 6561704), (32, 4101065), (40, 3280852), (80, 1640426), (160, 820213)]