68640825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 135705600

約数和(自身を除く): 67064775

約数列:

[1, 3, 5, 11, 15, 19, 25, 29, 33, 55, 57, 75, 87, 95, 145, 151, 165, 209, 275, 285, 319, 435, 453, 475, 551, 627, 725, 755, 825, 957, 1045, 1425, 1595, 1653, 1661, 2175, 2265, 2755, 2869, 3135, 3775, 4379, 4785, 4983, 5225, 6061, 7975, 8265, 8305, 8607, 11325, 13137, 13775, 14345, 15675, 18183, 21895, 23925, 24915, 30305, 31559, 41325, 41525, 43035, 48169, 65685, 71725, 83201, 90915, 94677, 109475, 124575, 144507, 151525, 157795, 215175, 240845, 249603, 328425, 416005, 454575, 473385, 722535, 788975, 915211, 1204225, 1248015, 2080025, 2366925, 2745633, 3612675, 4576055, 6240075, 13728165, 22880275, 68640825]

約数ペア:

[(1, 68640825), (3, 22880275), (5, 13728165), (11, 6240075), (15, 4576055), (19, 3612675), (25, 2745633), (29, 2366925), (33, 2080025), (55, 1248015), (57, 1204225), (75, 915211), (87, 788975), (95, 722535), (145, 473385), (151, 454575), (165, 416005), (209, 328425), (275, 249603), (285, 240845), (319, 215175), (435, 157795), (453, 151525), (475, 144507), (551, 124575), (627, 109475), (725, 94677), (755, 90915), (825, 83201), (957, 71725), (1045, 65685), (1425, 48169), (1595, 43035), (1653, 41525), (1661, 41325), (2175, 31559), (2265, 30305), (2755, 24915), (2869, 23925), (3135, 21895), (3775, 18183), (4379, 15675), (4785, 14345), (4983, 13775), (5225, 13137), (6061, 11325), (7975, 8607), (8265, 8305)]