90661825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 125706240

約数和(自身を除く): 35044415

約数列:

[1, 5, 19, 25, 31, 47, 95, 131, 155, 235, 475, 589, 655, 775, 893, 1175, 1457, 2489, 2945, 3275, 4061, 4465, 6157, 7285, 12445, 14725, 20305, 22325, 27683, 30785, 36425, 62225, 77159, 101525, 116983, 138415, 153925, 190867, 385795, 584915, 692075, 954335, 1928975, 2924575, 3626473, 4771675, 18132365, 90661825]

約数ペア:

[(1, 90661825), (5, 18132365), (19, 4771675), (25, 3626473), (31, 2924575), (47, 1928975), (95, 954335), (131, 692075), (155, 584915), (235, 385795), (475, 190867), (589, 153925), (655, 138415), (775, 116983), (893, 101525), (1175, 77159), (1457, 62225), (2489, 36425), (2945, 30785), (3275, 27683), (4061, 22325), (4465, 20305), (6157, 14725), (7285, 12445)]