31578580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13049}}^1$

素因数の和:13080

約数の個数: 36

約数和(自身を含む): 72897300

約数和(自身を除く): 41318720

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 13049, 26098, 52196, 65245, 130490, 143539, 260980, 287078, 574156, 717695, 1435390, 1578929, 2870780, 3157858, 6315716, 7894645, 15789290, 31578580]

約数ペア:

[(1, 31578580), (2, 15789290), (4, 7894645), (5, 6315716), (10, 3157858), (11, 2870780), (20, 1578929), (22, 1435390), (44, 717695), (55, 574156), (110, 287078), (121, 260980), (220, 143539), (242, 130490), (484, 65245), (605, 52196), (1210, 26098), (2420, 13049)]