28127340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 85765680

約数和(自身を除く): 57638340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 509, 614, 921, 1018, 1228, 1527, 1535, 1842, 2036, 2545, 2763, 3054, 3070, 3684, 4581, 4605, 5090, 5526, 6108, 6140, 7635, 9162, 9210, 10180, 11052, 13815, 15270, 18324, 18420, 22905, 27630, 30540, 45810, 55260, 91620, 156263, 312526, 468789, 625052, 781315, 937578, 1406367, 1562630, 1875156, 2343945, 2812734, 3125260, 4687890, 5625468, 7031835, 9375780, 14063670, 28127340]

約数ペア:

[(1, 28127340), (2, 14063670), (3, 9375780), (4, 7031835), (5, 5625468), (6, 4687890), (9, 3125260), (10, 2812734), (12, 2343945), (15, 1875156), (18, 1562630), (20, 1406367), (30, 937578), (36, 781315), (45, 625052), (60, 468789), (90, 312526), (180, 156263), (307, 91620), (509, 55260), (614, 45810), (921, 30540), (1018, 27630), (1228, 22905), (1527, 18420), (1535, 18324), (1842, 15270), (2036, 13815), (2545, 11052), (2763, 10180), (3054, 9210), (3070, 9162), (3684, 7635), (4581, 6140), (4605, 6108), (5090, 5526)]