16895775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 31950336

約数和(自身を除く): 15054561

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 43, 65, 75, 93, 129, 155, 169, 195, 215, 325, 403, 465, 507, 559, 645, 775, 845, 975, 1075, 1209, 1333, 1677, 2015, 2325, 2535, 2795, 3225, 3999, 4225, 5239, 6045, 6665, 7267, 8385, 10075, 12675, 13975, 15717, 17329, 19995, 21801, 26195, 30225, 33325, 36335, 41925, 51987, 78585, 86645, 99975, 109005, 130975, 181675, 225277, 259935, 392925, 433225, 545025, 675831, 1126385, 1299675, 3379155, 5631925, 16895775]

約数ペア:

[(1, 16895775), (3, 5631925), (5, 3379155), (13, 1299675), (15, 1126385), (25, 675831), (31, 545025), (39, 433225), (43, 392925), (65, 259935), (75, 225277), (93, 181675), (129, 130975), (155, 109005), (169, 99975), (195, 86645), (215, 78585), (325, 51987), (403, 41925), (465, 36335), (507, 33325), (559, 30225), (645, 26195), (775, 21801), (845, 19995), (975, 17329), (1075, 15717), (1209, 13975), (1333, 12675), (1677, 10075), (2015, 8385), (2325, 7267), (2535, 6665), (2795, 6045), (3225, 5239), (3999, 4225)]