640057915

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{795103}}^1$

素因数の和:795138

約数の個数: 16

約数和(自身を含む): 915959808

約数和(自身を除く): 275901893

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 795103, 3975515, 5565721, 18287369, 27828605, 91436845, 128011583, 640057915]

約数ペア:

[(1, 640057915), (5, 128011583), (7, 91436845), (23, 27828605), (35, 18287369), (115, 5565721), (161, 3975515), (805, 795103)]