638712560

素因数分解:

$2^4\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{6053}}^1$

素因数の和:7385

約数の個数: 40

約数和(自身を含む): 1486378080

約数和(自身を除く): 847665520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1319, 2638, 5276, 6053, 6595, 10552, 12106, 13190, 21104, 24212, 26380, 30265, 48424, 52760, 60530, 96848, 105520, 121060, 242120, 484240, 7983907, 15967814, 31935628, 39919535, 63871256, 79839070, 127742512, 159678140, 319356280, 638712560]

約数ペア:

[(1, 638712560), (2, 319356280), (4, 159678140), (5, 127742512), (8, 79839070), (10, 63871256), (16, 39919535), (20, 31935628), (40, 15967814), (80, 7983907), (1319, 484240), (2638, 242120), (5276, 121060), (6053, 105520), (6595, 96848), (10552, 60530), (12106, 52760), (13190, 48424), (21104, 30265), (24212, 26380)]