128530340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{207307}}^1$

素因数の和:207347

約数の個数: 24

約数和(自身を含む): 278621952

約数和(自身を除く): 150091612

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 207307, 414614, 829228, 1036535, 2073070, 4146140, 6426517, 12853034, 25706068, 32132585, 64265170, 128530340]

約数ペア:

[(1, 128530340), (2, 64265170), (4, 32132585), (5, 25706068), (10, 12853034), (20, 6426517), (31, 4146140), (62, 2073070), (124, 1036535), (155, 829228), (310, 414614), (620, 207307)]