15917725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 22855680

約数和(自身を除く): 6937955

約数列:

[1, 5, 19, 23, 25, 31, 47, 95, 115, 155, 235, 437, 475, 575, 589, 713, 775, 893, 1081, 1175, 1457, 2185, 2945, 3565, 4465, 5405, 7285, 10925, 13547, 14725, 17825, 20539, 22325, 27025, 27683, 33511, 36425, 67735, 102695, 138415, 167555, 338675, 513475, 636709, 692075, 837775, 3183545, 15917725]

約数ペア:

[(1, 15917725), (5, 3183545), (19, 837775), (23, 692075), (25, 636709), (31, 513475), (47, 338675), (95, 167555), (115, 138415), (155, 102695), (235, 67735), (437, 36425), (475, 33511), (575, 27683), (589, 27025), (713, 22325), (775, 20539), (893, 17825), (1081, 14725), (1175, 13547), (1457, 10925), (2185, 7285), (2945, 5405), (3565, 4465)]