126309520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 304699248

約数和(自身を除く): 178389728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 97, 164, 194, 205, 328, 388, 397, 410, 485, 656, 776, 794, 820, 970, 1552, 1588, 1640, 1940, 1985, 3176, 3280, 3880, 3970, 3977, 6352, 7760, 7940, 7954, 15880, 15908, 16277, 19885, 31760, 31816, 32554, 38509, 39770, 63632, 65108, 77018, 79540, 81385, 130216, 154036, 159080, 162770, 192545, 260432, 308072, 318160, 325540, 385090, 616144, 651080, 770180, 1302160, 1540360, 1578869, 3080720, 3157738, 6315476, 7894345, 12630952, 15788690, 25261904, 31577380, 63154760, 126309520]

約数ペア:

[(1, 126309520), (2, 63154760), (4, 31577380), (5, 25261904), (8, 15788690), (10, 12630952), (16, 7894345), (20, 6315476), (40, 3157738), (41, 3080720), (80, 1578869), (82, 1540360), (97, 1302160), (164, 770180), (194, 651080), (205, 616144), (328, 385090), (388, 325540), (397, 318160), (410, 308072), (485, 260432), (656, 192545), (776, 162770), (794, 159080), (820, 154036), (970, 130216), (1552, 81385), (1588, 79540), (1640, 77018), (1940, 65108), (1985, 63632), (3176, 39770), (3280, 38509), (3880, 32554), (3970, 31816), (3977, 31760), (6352, 19885), (7760, 16277), (7940, 15908), (7954, 15880)]