179988975

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 335134800

約数和(自身を除く): 155145825

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 109, 123, 179, 205, 225, 327, 369, 537, 545, 615, 895, 981, 1025, 1611, 1635, 1845, 2685, 2725, 3075, 4469, 4475, 4905, 7339, 8055, 8175, 9225, 13407, 13425, 19511, 22017, 22345, 24525, 36695, 40221, 40275, 58533, 66051, 67035, 97555, 110085, 111725, 175599, 183475, 201105, 292665, 330255, 335175, 487775, 550425, 799951, 877995, 1005525, 1463325, 1651275, 2399853, 3999755, 4389975, 7199559, 11999265, 19998775, 35997795, 59996325, 179988975]

約数ペア:

[(1, 179988975), (3, 59996325), (5, 35997795), (9, 19998775), (15, 11999265), (25, 7199559), (41, 4389975), (45, 3999755), (75, 2399853), (109, 1651275), (123, 1463325), (179, 1005525), (205, 877995), (225, 799951), (327, 550425), (369, 487775), (537, 335175), (545, 330255), (615, 292665), (895, 201105), (981, 183475), (1025, 175599), (1611, 111725), (1635, 110085), (1845, 97555), (2685, 67035), (2725, 66051), (3075, 58533), (4469, 40275), (4475, 40221), (4905, 36695), (7339, 24525), (8055, 22345), (8175, 22017), (9225, 19511), (13407, 13425)]