399320110

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{814939}}^1$

素因数の和:814960

約数の個数: 24

約数和(自身を含む): 836128440

約数和(自身を除く): 436808330

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 814939, 1629878, 4074695, 5704573, 8149390, 11409146, 28522865, 39932011, 57045730, 79864022, 199660055, 399320110]

約数ペア:

[(1, 399320110), (2, 199660055), (5, 79864022), (7, 57045730), (10, 39932011), (14, 28522865), (35, 11409146), (49, 8149390), (70, 5704573), (98, 4074695), (245, 1629878), (490, 814939)]