6640275

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 11784960

約数和(自身を除く): 5144685

約数列:

[1, 3, 5, 15, 25, 29, 43, 71, 75, 87, 129, 145, 213, 215, 355, 435, 645, 725, 1065, 1075, 1247, 1775, 2059, 2175, 3053, 3225, 3741, 5325, 6177, 6235, 9159, 10295, 15265, 18705, 30885, 31175, 45795, 51475, 76325, 88537, 93525, 154425, 228975, 265611, 442685, 1328055, 2213425, 6640275]

約数ペア:

[(1, 6640275), (3, 2213425), (5, 1328055), (15, 442685), (25, 265611), (29, 228975), (43, 154425), (71, 93525), (75, 88537), (87, 76325), (129, 51475), (145, 45795), (213, 31175), (215, 30885), (355, 18705), (435, 15265), (645, 10295), (725, 9159), (1065, 6235), (1075, 6177), (1247, 5325), (1775, 3741), (2059, 3225), (2175, 3053)]