1646645

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 2757888

約数和(自身を除く): 1111243

約数列:

[1, 5, 7, 11, 13, 35, 47, 49, 55, 65, 77, 91, 143, 235, 245, 329, 385, 455, 517, 539, 611, 637, 715, 1001, 1645, 2303, 2585, 2695, 3055, 3185, 3619, 4277, 5005, 6721, 7007, 11515, 18095, 21385, 25333, 29939, 33605, 35035, 47047, 126665, 149695, 235235, 329329, 1646645]

約数ペア:

[(1, 1646645), (5, 329329), (7, 235235), (11, 149695), (13, 126665), (35, 47047), (47, 35035), (49, 33605), (55, 29939), (65, 25333), (77, 21385), (91, 18095), (143, 11515), (235, 7007), (245, 6721), (329, 5005), (385, 4277), (455, 3619), (517, 3185), (539, 3055), (611, 2695), (637, 2585), (715, 2303), (1001, 1645)]