19561280

素因数分解:

$2^6\times 5^1\times {\mathrm{61129}}^1$

素因数の和:61146

約数の個数: 28

約数和(自身を含む): 46581060

約数和(自身を除く): 27019780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 61129, 122258, 244516, 305645, 489032, 611290, 978064, 1222580, 1956128, 2445160, 3912256, 4890320, 9780640, 19561280]

約数ペア:

[(1, 19561280), (2, 9780640), (4, 4890320), (5, 3912256), (8, 2445160), (10, 1956128), (16, 1222580), (20, 978064), (32, 611290), (40, 489032), (64, 305645), (80, 244516), (160, 122258), (320, 61129)]