163654160

素因数分解:

$2^4\times 5^1\times {\mathrm{2045677}}^1$

素因数の和:2045690

約数の個数: 20

約数和(自身を含む): 380496108

約数和(自身を除く): 216841948

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2045677, 4091354, 8182708, 10228385, 16365416, 20456770, 32730832, 40913540, 81827080, 163654160]

約数ペア:

[(1, 163654160), (2, 81827080), (4, 40913540), (5, 32730832), (8, 20456770), (10, 16365416), (16, 10228385), (20, 8182708), (40, 4091354), (80, 2045677)]