31142895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 61378560

約数和(自身を除く): 30235665

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 73, 85, 105, 119, 219, 239, 255, 357, 365, 511, 595, 717, 1095, 1195, 1241, 1533, 1673, 1785, 2555, 3585, 3723, 4063, 5019, 6205, 7665, 8365, 8687, 12189, 17447, 18615, 20315, 25095, 26061, 28441, 43435, 52341, 60945, 85323, 87235, 122129, 130305, 142205, 261705, 296599, 366387, 426615, 610645, 889797, 1482995, 1831935, 2076193, 4448985, 6228579, 10380965, 31142895]

約数ペア:

[(1, 31142895), (3, 10380965), (5, 6228579), (7, 4448985), (15, 2076193), (17, 1831935), (21, 1482995), (35, 889797), (51, 610645), (73, 426615), (85, 366387), (105, 296599), (119, 261705), (219, 142205), (239, 130305), (255, 122129), (357, 87235), (365, 85323), (511, 60945), (595, 52341), (717, 43435), (1095, 28441), (1195, 26061), (1241, 25095), (1533, 20315), (1673, 18615), (1785, 17447), (2555, 12189), (3585, 8687), (3723, 8365), (4063, 7665), (5019, 6205)]