339640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1213}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 874080

約数和(自身を除く): 534440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1213, 2426, 4852, 6065, 8491, 9704, 12130, 16982, 24260, 33964, 42455, 48520, 67928, 84910, 169820, 339640]

約数ペア:

[(1, 339640), (2, 169820), (4, 84910), (5, 67928), (7, 48520), (8, 42455), (10, 33964), (14, 24260), (20, 16982), (28, 12130), (35, 9704), (40, 8491), (56, 6065), (70, 4852), (140, 2426), (280, 1213)]