258575180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{2711}}^1$

素因数の和:2990

約数の個数: 48

約数和(自身を含む): 574076160

約数和(自身を除く): 315500980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 380, 502, 1004, 1255, 2510, 2711, 4769, 5020, 5422, 9538, 10844, 13555, 19076, 23845, 27110, 47690, 51509, 54220, 95380, 103018, 206036, 257545, 515090, 680461, 1030180, 1360922, 2721844, 3402305, 6804610, 12928759, 13609220, 25857518, 51715036, 64643795, 129287590, 258575180]

約数ペア:

[(1, 258575180), (2, 129287590), (4, 64643795), (5, 51715036), (10, 25857518), (19, 13609220), (20, 12928759), (38, 6804610), (76, 3402305), (95, 2721844), (190, 1360922), (251, 1030180), (380, 680461), (502, 515090), (1004, 257545), (1255, 206036), (2510, 103018), (2711, 95380), (4769, 54220), (5020, 51509), (5422, 47690), (9538, 27110), (10844, 23845), (13555, 19076)]