1520880004

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{379}}^1\times {\mathrm{397}}^1$

素因数の和:825

約数の個数: 72

約数和(自身を含む): 3226856640

約数和(自身を除く): 1705976636

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 379, 397, 532, 722, 758, 794, 1444, 1516, 1588, 2527, 2653, 2779, 5054, 5306, 5558, 7201, 7543, 10108, 10612, 11116, 14402, 15086, 28804, 30172, 50407, 52801, 100814, 105602, 136819, 143317, 150463, 201628, 211204, 273638, 286634, 300926, 547276, 573268, 601852, 957733, 1003219, 1053241, 1915466, 2006438, 2106482, 2858797, 3830932, 4012876, 4212964, 5717594, 11435188, 20011579, 40023158, 54317143, 80046316, 108634286, 217268572, 380220001, 760440002, 1520880004]

約数ペア:

[(1, 1520880004), (2, 760440002), (4, 380220001), (7, 217268572), (14, 108634286), (19, 80046316), (28, 54317143), (38, 40023158), (76, 20011579), (133, 11435188), (266, 5717594), (361, 4212964), (379, 4012876), (397, 3830932), (532, 2858797), (722, 2106482), (758, 2006438), (794, 1915466), (1444, 1053241), (1516, 1003219), (1588, 957733), (2527, 601852), (2653, 573268), (2779, 547276), (5054, 300926), (5306, 286634), (5558, 273638), (7201, 211204), (7543, 201628), (10108, 150463), (10612, 143317), (11116, 136819), (14402, 105602), (15086, 100814), (28804, 52801), (30172, 50407)]