40809740

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1583}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 85821120

約数和(自身を除く): 45011380

約数列:

[1, 2, 4, 5, 10, 20, 1289, 1583, 2578, 3166, 5156, 6332, 6445, 7915, 12890, 15830, 25780, 31660, 2040487, 4080974, 8161948, 10202435, 20404870, 40809740]

約数ペア:

[(1, 40809740), (2, 20404870), (4, 10202435), (5, 8161948), (10, 4080974), (20, 2040487), (1289, 31660), (1583, 25780), (2578, 15830), (3166, 12890), (5156, 7915), (6332, 6445)]