72460880

素因数分解:

$2^4\times 5^1\times {\mathrm{905761}}^1$

素因数の和:905774

約数の個数: 20

約数和(自身を含む): 168471732

約数和(自身を除く): 96010852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 905761, 1811522, 3623044, 4528805, 7246088, 9057610, 14492176, 18115220, 36230440, 72460880]

約数ペア:

[(1, 72460880), (2, 36230440), (4, 18115220), (5, 14492176), (8, 9057610), (10, 7246088), (16, 4528805), (20, 3623044), (40, 1811522), (80, 905761)]