1780218215

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1\times {\mathrm{19457}}^1$

素因数の和:20122

約数の個数: 16

約数和(自身を含む): 2213542080

約数和(自身を除く): 433323865

約数列:

[1, 5, 29, 145, 631, 3155, 18299, 19457, 91495, 97285, 564253, 2821265, 12277367, 61386835, 356043643, 1780218215]

約数ペア:

[(1, 1780218215), (5, 356043643), (29, 61386835), (145, 12277367), (631, 2821265), (3155, 564253), (18299, 97285), (19457, 91495)]