20429008

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4159}}^1$

素因数の和:4474

約数の個数: 20

約数和(自身を含む): 39719680

約数和(自身を除く): 19290672

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4159, 4912, 8318, 16636, 33272, 66544, 1276813, 2553626, 5107252, 10214504, 20429008]

約数ペア:

[(1, 20429008), (2, 10214504), (4, 5107252), (8, 2553626), (16, 1276813), (307, 66544), (614, 33272), (1228, 16636), (2456, 8318), (4159, 4912)]