21962320

素因数分解:

$2^4\times 5^1\times {\mathrm{274529}}^1$

素因数の和:274542

約数の個数: 20

約数和(自身を含む): 51062580

約数和(自身を除く): 29100260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274529, 549058, 1098116, 1372645, 2196232, 2745290, 4392464, 5490580, 10981160, 21962320]

約数ペア:

[(1, 21962320), (2, 10981160), (4, 5490580), (5, 4392464), (8, 2745290), (10, 2196232), (16, 1372645), (20, 1098116), (40, 549058), (80, 274529)]