2561490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 6998400

約数和(自身を除く): 4436910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 90, 106, 135, 159, 179, 265, 270, 318, 358, 477, 530, 537, 795, 895, 954, 1074, 1431, 1590, 1611, 1790, 2385, 2685, 2862, 3222, 4770, 4833, 5370, 7155, 8055, 9487, 9666, 14310, 16110, 18974, 24165, 28461, 47435, 48330, 56922, 85383, 94870, 142305, 170766, 256149, 284610, 426915, 512298, 853830, 1280745, 2561490]

約数ペア:

[(1, 2561490), (2, 1280745), (3, 853830), (5, 512298), (6, 426915), (9, 284610), (10, 256149), (15, 170766), (18, 142305), (27, 94870), (30, 85383), (45, 56922), (53, 48330), (54, 47435), (90, 28461), (106, 24165), (135, 18974), (159, 16110), (179, 14310), (265, 9666), (270, 9487), (318, 8055), (358, 7155), (477, 5370), (530, 4833), (537, 4770), (795, 3222), (895, 2862), (954, 2685), (1074, 2385), (1431, 1790), (1590, 1611)]