20400764

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{449}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 36867600

約数和(自身を除く): 16466836

約数列:

[1, 2, 4, 37, 74, 148, 307, 449, 614, 898, 1228, 1796, 11359, 16613, 22718, 33226, 45436, 66452, 137843, 275686, 551372, 5100191, 10200382, 20400764]

約数ペア:

[(1, 20400764), (2, 10200382), (4, 5100191), (37, 551372), (74, 275686), (148, 137843), (307, 66452), (449, 45436), (614, 33226), (898, 22718), (1228, 16613), (1796, 11359)]