7947225

素因数分解:

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

素因数の和:72

約数の個数: 108

約数和(自身を含む): 17699760

約数和(自身を除く): 9752535

約数列:

[1, 3, 5, 9, 11, 13, 15, 19, 25, 33, 39, 45, 55, 57, 65, 75, 95, 99, 117, 143, 165, 169, 171, 195, 209, 225, 247, 275, 285, 325, 429, 475, 495, 507, 585, 627, 715, 741, 825, 845, 855, 975, 1045, 1235, 1287, 1425, 1521, 1859, 1881, 2145, 2223, 2475, 2535, 2717, 2925, 3135, 3211, 3575, 3705, 4225, 4275, 5225, 5577, 6175, 6435, 7605, 8151, 9295, 9405, 9633, 10725, 11115, 12675, 13585, 15675, 16055, 16731, 18525, 24453, 27885, 28899, 32175, 35321, 38025, 40755, 46475, 47025, 48165, 55575, 67925, 80275, 83655, 105963, 122265, 139425, 144495, 176605, 203775, 240825, 317889, 418275, 529815, 611325, 722475, 883025, 1589445, 2649075, 7947225]

約数ペア:

[(1, 7947225), (3, 2649075), (5, 1589445), (9, 883025), (11, 722475), (13, 611325), (15, 529815), (19, 418275), (25, 317889), (33, 240825), (39, 203775), (45, 176605), (55, 144495), (57, 139425), (65, 122265), (75, 105963), (95, 83655), (99, 80275), (117, 67925), (143, 55575), (165, 48165), (169, 47025), (171, 46475), (195, 40755), (209, 38025), (225, 35321), (247, 32175), (275, 28899), (285, 27885), (325, 24453), (429, 18525), (475, 16731), (495, 16055), (507, 15675), (585, 13585), (627, 12675), (715, 11115), (741, 10725), (825, 9633), (845, 9405), (855, 9295), (975, 8151), (1045, 7605), (1235, 6435), (1287, 6175), (1425, 5577), (1521, 5225), (1859, 4275), (1881, 4225), (2145, 3705), (2223, 3575), (2475, 3211), (2535, 3135), (2717, 2925)]