31129040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 78423552

約数和(自身を除く): 47294512

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 487, 680, 752, 799, 940, 974, 1360, 1598, 1880, 1948, 2435, 3196, 3760, 3896, 3995, 4870, 6392, 7792, 7990, 8279, 9740, 12784, 15980, 16558, 19480, 22889, 31960, 33116, 38960, 41395, 45778, 63920, 66232, 82790, 91556, 114445, 132464, 165580, 183112, 228890, 331160, 366224, 389113, 457780, 662320, 778226, 915560, 1556452, 1831120, 1945565, 3112904, 3891130, 6225808, 7782260, 15564520, 31129040]

約数ペア:

[(1, 31129040), (2, 15564520), (4, 7782260), (5, 6225808), (8, 3891130), (10, 3112904), (16, 1945565), (17, 1831120), (20, 1556452), (34, 915560), (40, 778226), (47, 662320), (68, 457780), (80, 389113), (85, 366224), (94, 331160), (136, 228890), (170, 183112), (188, 165580), (235, 132464), (272, 114445), (340, 91556), (376, 82790), (470, 66232), (487, 63920), (680, 45778), (752, 41395), (799, 38960), (940, 33116), (974, 31960), (1360, 22889), (1598, 19480), (1880, 16558), (1948, 15980), (2435, 12784), (3196, 9740), (3760, 8279), (3896, 7990), (3995, 7792), (4870, 6392)]