1640802080

素因数分解:

$2^5\times 5^1\times {\mathrm{10255013}}^1$

素因数の和:10255028

約数の個数: 24

約数和(自身を含む): 3876395292

約数和(自身を除く): 2235593212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 10255013, 20510026, 41020052, 51275065, 82040104, 102550130, 164080208, 205100260, 328160416, 410200520, 820401040, 1640802080]

約数ペア:

[(1, 1640802080), (2, 820401040), (4, 410200520), (5, 328160416), (8, 205100260), (10, 164080208), (16, 102550130), (20, 82040104), (32, 51275065), (40, 41020052), (80, 20510026), (160, 10255013)]