9780640

素因数分解:

$2^5\times 5^1\times {\mathrm{61129}}^1$

素因数の和:61144

約数の個数: 24

約数和(自身を含む): 23107140

約数和(自身を除く): 13326500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 61129, 122258, 244516, 305645, 489032, 611290, 978064, 1222580, 1956128, 2445160, 4890320, 9780640]

約数ペア:

[(1, 9780640), (2, 4890320), (4, 2445160), (5, 1956128), (8, 1222580), (10, 978064), (16, 611290), (20, 489032), (32, 305645), (40, 244516), (80, 122258), (160, 61129)]