313620280

素因数分解:

$2^3\times 5^1\times {\mathrm{7840507}}^1$

素因数の和:7840518

約数の個数: 16

約数和(自身を含む): 705645720

約数和(自身を除く): 392025440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7840507, 15681014, 31362028, 39202535, 62724056, 78405070, 156810140, 313620280]

約数ペア:

[(1, 313620280), (2, 156810140), (4, 78405070), (5, 62724056), (8, 39202535), (10, 31362028), (20, 15681014), (40, 7840507)]