128215671555

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{18913}}^1$

素因数の和:19252

約数の個数: 64

約数和(自身を含む): 216146165760

約数和(自身を除く): 87930494205

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 239, 305, 465, 717, 915, 1195, 1891, 3585, 5673, 7409, 9455, 14579, 18913, 22227, 28365, 37045, 43737, 56739, 72895, 94565, 111135, 218685, 283695, 451949, 586303, 1153693, 1355847, 1758909, 2259745, 2931515, 3461079, 4520207, 5768465, 6779235, 8794545, 13560621, 17305395, 22601035, 35764483, 67803105, 107293449, 140126417, 178822415, 275732627, 420379251, 536467245, 700632085, 827197881, 1378663135, 2101896255, 4135989405, 8547711437, 25643134311, 42738557185, 128215671555]

約数ペア:

[(1, 128215671555), (3, 42738557185), (5, 25643134311), (15, 8547711437), (31, 4135989405), (61, 2101896255), (93, 1378663135), (155, 827197881), (183, 700632085), (239, 536467245), (305, 420379251), (465, 275732627), (717, 178822415), (915, 140126417), (1195, 107293449), (1891, 67803105), (3585, 35764483), (5673, 22601035), (7409, 17305395), (9455, 13560621), (14579, 8794545), (18913, 6779235), (22227, 5768465), (28365, 4520207), (37045, 3461079), (43737, 2931515), (56739, 2259745), (72895, 1758909), (94565, 1355847), (111135, 1153693), (218685, 586303), (283695, 451949)]