31288180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1847}}^1$

素因数の和:1885

約数の個数: 72

約数和(自身を含む): 82583424

約数和(自身を除く): 51295244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 1847, 2420, 3388, 3694, 4235, 7388, 8470, 9235, 12929, 16940, 18470, 20317, 25858, 36940, 40634, 51716, 64645, 81268, 101585, 129290, 142219, 203170, 223487, 258580, 284438, 406340, 446974, 568876, 711095, 893948, 1117435, 1422190, 1564409, 2234870, 2844380, 3128818, 4469740, 6257636, 7822045, 15644090, 31288180]

約数ペア:

[(1, 31288180), (2, 15644090), (4, 7822045), (5, 6257636), (7, 4469740), (10, 3128818), (11, 2844380), (14, 2234870), (20, 1564409), (22, 1422190), (28, 1117435), (35, 893948), (44, 711095), (55, 568876), (70, 446974), (77, 406340), (110, 284438), (121, 258580), (140, 223487), (154, 203170), (220, 142219), (242, 129290), (308, 101585), (385, 81268), (484, 64645), (605, 51716), (770, 40634), (847, 36940), (1210, 25858), (1540, 20317), (1694, 18470), (1847, 16940), (2420, 12929), (3388, 9235), (3694, 8470), (4235, 7388)]