51158780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 116974368

約数和(自身を除く): 65815588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 167, 170, 212, 265, 289, 334, 340, 530, 578, 668, 835, 901, 1060, 1156, 1445, 1670, 1802, 2839, 2890, 3340, 3604, 4505, 5678, 5780, 8851, 9010, 11356, 14195, 15317, 17702, 18020, 28390, 30634, 35404, 44255, 48263, 56780, 61268, 76585, 88510, 96526, 150467, 153170, 177020, 193052, 241315, 300934, 306340, 482630, 601868, 752335, 965260, 1504670, 2557939, 3009340, 5115878, 10231756, 12789695, 25579390, 51158780]

約数ペア:

[(1, 51158780), (2, 25579390), (4, 12789695), (5, 10231756), (10, 5115878), (17, 3009340), (20, 2557939), (34, 1504670), (53, 965260), (68, 752335), (85, 601868), (106, 482630), (167, 306340), (170, 300934), (212, 241315), (265, 193052), (289, 177020), (334, 153170), (340, 150467), (530, 96526), (578, 88510), (668, 76585), (835, 61268), (901, 56780), (1060, 48263), (1156, 44255), (1445, 35404), (1670, 30634), (1802, 28390), (2839, 18020), (2890, 17702), (3340, 15317), (3604, 14195), (4505, 11356), (5678, 9010), (5780, 8851)]