80898140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{457}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 174508992

約数和(自身を除く): 93610852

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 167, 212, 265, 334, 457, 530, 668, 835, 914, 1060, 1670, 1828, 2285, 3340, 4570, 8851, 9140, 17702, 24221, 35404, 44255, 48442, 76319, 88510, 96884, 121105, 152638, 177020, 242210, 305276, 381595, 484420, 763190, 1526380, 4044907, 8089814, 16179628, 20224535, 40449070, 80898140]

約数ペア:

[(1, 80898140), (2, 40449070), (4, 20224535), (5, 16179628), (10, 8089814), (20, 4044907), (53, 1526380), (106, 763190), (167, 484420), (212, 381595), (265, 305276), (334, 242210), (457, 177020), (530, 152638), (668, 121105), (835, 96884), (914, 88510), (1060, 76319), (1670, 48442), (1828, 44255), (2285, 35404), (3340, 24221), (4570, 17702), (8851, 9140)]