15405825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 27694656

約数和(自身を除く): 12288831

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 75, 85, 129, 215, 255, 281, 425, 645, 731, 843, 1075, 1275, 1405, 2193, 3225, 3655, 4215, 4777, 7025, 10965, 12083, 14331, 18275, 21075, 23885, 36249, 54825, 60415, 71655, 119425, 181245, 205411, 302075, 358275, 616233, 906225, 1027055, 3081165, 5135275, 15405825]

約数ペア:

[(1, 15405825), (3, 5135275), (5, 3081165), (15, 1027055), (17, 906225), (25, 616233), (43, 358275), (51, 302075), (75, 205411), (85, 181245), (129, 119425), (215, 71655), (255, 60415), (281, 54825), (425, 36249), (645, 23885), (731, 21075), (843, 18275), (1075, 14331), (1275, 12083), (1405, 10965), (2193, 7025), (3225, 4777), (3655, 4215)]