8017520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 21665280

約数和(自身を除く): 13647760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 103, 112, 139, 140, 206, 278, 280, 412, 515, 556, 560, 695, 721, 824, 973, 1030, 1112, 1390, 1442, 1648, 1946, 2060, 2224, 2780, 2884, 3605, 3892, 4120, 4865, 5560, 5768, 7210, 7784, 8240, 9730, 11120, 11536, 14317, 14420, 15568, 19460, 28634, 28840, 38920, 57268, 57680, 71585, 77840, 100219, 114536, 143170, 200438, 229072, 286340, 400876, 501095, 572680, 801752, 1002190, 1145360, 1603504, 2004380, 4008760, 8017520]

約数ペア:

[(1, 8017520), (2, 4008760), (4, 2004380), (5, 1603504), (7, 1145360), (8, 1002190), (10, 801752), (14, 572680), (16, 501095), (20, 400876), (28, 286340), (35, 229072), (40, 200438), (56, 143170), (70, 114536), (80, 100219), (103, 77840), (112, 71585), (139, 57680), (140, 57268), (206, 38920), (278, 28840), (280, 28634), (412, 19460), (515, 15568), (556, 14420), (560, 14317), (695, 11536), (721, 11120), (824, 9730), (973, 8240), (1030, 7784), (1112, 7210), (1390, 5768), (1442, 5560), (1648, 4865), (1946, 4120), (2060, 3892), (2224, 3605), (2780, 2884)]