20173725

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:73

約数の個数: 144

約数和(自身を含む): 46177600

約数和(自身を除く): 26003875

約数列:

[1, 3, 5, 9, 11, 13, 15, 19, 25, 27, 33, 39, 45, 55, 57, 65, 75, 95, 99, 117, 121, 135, 143, 165, 171, 195, 209, 225, 247, 275, 285, 297, 325, 351, 363, 429, 475, 495, 513, 585, 605, 627, 675, 715, 741, 825, 855, 975, 1045, 1089, 1235, 1287, 1425, 1485, 1573, 1755, 1815, 1881, 2145, 2223, 2299, 2475, 2565, 2717, 2925, 3025, 3135, 3267, 3575, 3705, 3861, 4275, 4719, 5225, 5445, 5643, 6175, 6435, 6669, 6897, 7425, 7865, 8151, 8775, 9075, 9405, 10725, 11115, 11495, 12825, 13585, 14157, 15675, 16335, 18525, 19305, 20691, 23595, 24453, 27225, 28215, 29887, 32175, 33345, 34485, 39325, 40755, 42471, 47025, 55575, 57475, 62073, 67925, 70785, 73359, 81675, 89661, 96525, 103455, 117975, 122265, 141075, 149435, 166725, 172425, 203775, 212355, 268983, 310365, 353925, 366795, 448305, 517275, 611325, 747175, 806949, 1061775, 1344915, 1551825, 1833975, 2241525, 4034745, 6724575, 20173725]

約数ペア:

[(1, 20173725), (3, 6724575), (5, 4034745), (9, 2241525), (11, 1833975), (13, 1551825), (15, 1344915), (19, 1061775), (25, 806949), (27, 747175), (33, 611325), (39, 517275), (45, 448305), (55, 366795), (57, 353925), (65, 310365), (75, 268983), (95, 212355), (99, 203775), (117, 172425), (121, 166725), (135, 149435), (143, 141075), (165, 122265), (171, 117975), (195, 103455), (209, 96525), (225, 89661), (247, 81675), (275, 73359), (285, 70785), (297, 67925), (325, 62073), (351, 57475), (363, 55575), (429, 47025), (475, 42471), (495, 40755), (513, 39325), (585, 34485), (605, 33345), (627, 32175), (675, 29887), (715, 28215), (741, 27225), (825, 24453), (855, 23595), (975, 20691), (1045, 19305), (1089, 18525), (1235, 16335), (1287, 15675), (1425, 14157), (1485, 13585), (1573, 12825), (1755, 11495), (1815, 11115), (1881, 10725), (2145, 9405), (2223, 9075), (2299, 8775), (2475, 8151), (2565, 7865), (2717, 7425), (2925, 6897), (3025, 6669), (3135, 6435), (3267, 6175), (3575, 5643), (3705, 5445), (3861, 5225), (4275, 4719)]