25621040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18839}}^1$

素因数の和:18869

約数の個数: 40

約数和(自身を含む): 63076320

約数和(自身を除く): 37455280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18839, 37678, 75356, 94195, 150712, 188390, 301424, 320263, 376780, 640526, 753560, 1281052, 1507120, 1601315, 2562104, 3202630, 5124208, 6405260, 12810520, 25621040]

約数ペア:

[(1, 25621040), (2, 12810520), (4, 6405260), (5, 5124208), (8, 3202630), (10, 2562104), (16, 1601315), (17, 1507120), (20, 1281052), (34, 753560), (40, 640526), (68, 376780), (80, 320263), (85, 301424), (136, 188390), (170, 150712), (272, 94195), (340, 75356), (680, 37678), (1360, 18839)]