78479740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{95707}}^1$

素因数の和:95757

約数の個数: 24

約数和(自身を含む): 168828912

約数和(自身を除く): 90349172

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 95707, 191414, 382828, 478535, 957070, 1914140, 3923987, 7847974, 15695948, 19619935, 39239870, 78479740]

約数ペア:

[(1, 78479740), (2, 39239870), (4, 19619935), (5, 15695948), (10, 7847974), (20, 3923987), (41, 1914140), (82, 957070), (164, 478535), (205, 382828), (410, 191414), (820, 95707)]