420557.00000000

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{4027}}^1$

素因数の和:4649

約数の個数: 24

約数和(自身を含む): 103874064

約数和(自身を除く): 54503044

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 2452, 3065, 4027, 6130, 8054, 12260, 16108, 20135, 40270, 80540, 2468551, 4937102, 9874204, 12342755, 24685510, 49371020]

約数ペア:

[(1, 49371020), (2, 24685510), (4, 12342755), (5, 9874204), (10, 4937102), (20, 2468551), (613, 80540), (1226, 40270), (2452, 20135), (3065, 16108), (4027, 12260), (6130, 8054)]