72278840

素因数分解:

$2^3\times 5^1\times {\mathrm{1806971}}^1$

素因数の和:1806982

約数の個数: 16

約数和(自身を含む): 162627480

約数和(自身を除く): 90348640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1806971, 3613942, 7227884, 9034855, 14455768, 18069710, 36139420, 72278840]

約数ペア:

[(1, 72278840), (2, 36139420), (4, 18069710), (5, 14455768), (8, 9034855), (10, 7227884), (20, 3613942), (40, 1806971)]