313629890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{640061}}^1$

素因数の和:640082

約数の個数: 24

約数和(自身を含む): 656703612

約数和(自身を除く): 343073722

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 640061, 1280122, 3200305, 4480427, 6400610, 8960854, 22402135, 31362989, 44804270, 62725978, 156814945, 313629890]

約数ペア:

[(1, 313629890), (2, 156814945), (5, 62725978), (7, 44804270), (10, 31362989), (14, 22402135), (35, 8960854), (49, 6400610), (70, 4480427), (98, 3200305), (245, 1280122), (490, 640061)]