30174980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 71746584

約数和(自身を除く): 41571604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 185, 220, 242, 337, 370, 407, 484, 605, 674, 740, 814, 1210, 1348, 1628, 1685, 2035, 2420, 3370, 3707, 4070, 4477, 6740, 7414, 8140, 8954, 12469, 14828, 17908, 18535, 22385, 24938, 37070, 40777, 44770, 49876, 62345, 74140, 81554, 89540, 124690, 137159, 163108, 203885, 249380, 274318, 407770, 548636, 685795, 815540, 1371590, 1508749, 2743180, 3017498, 6034996, 7543745, 15087490, 30174980]

約数ペア:

[(1, 30174980), (2, 15087490), (4, 7543745), (5, 6034996), (10, 3017498), (11, 2743180), (20, 1508749), (22, 1371590), (37, 815540), (44, 685795), (55, 548636), (74, 407770), (110, 274318), (121, 249380), (148, 203885), (185, 163108), (220, 137159), (242, 124690), (337, 89540), (370, 81554), (407, 74140), (484, 62345), (605, 49876), (674, 44770), (740, 40777), (814, 37070), (1210, 24938), (1348, 22385), (1628, 18535), (1685, 17908), (2035, 14828), (2420, 12469), (3370, 8954), (3707, 8140), (4070, 7414), (4477, 6740)]