72088220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{40499}}^1$

素因数の和:40597

約数の個数: 24

約数和(自身を含む): 153090000

約数和(自身を除く): 81001780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 40499, 80998, 161996, 202495, 404990, 809980, 3604411, 7208822, 14417644, 18022055, 36044110, 72088220]

約数ペア:

[(1, 72088220), (2, 36044110), (4, 18022055), (5, 14417644), (10, 7208822), (20, 3604411), (89, 809980), (178, 404990), (356, 202495), (445, 161996), (890, 80998), (1780, 40499)]