261956120

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1\times {\mathrm{317}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 601477920

約数和(自身を除く): 339521800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 283, 292, 317, 365, 566, 584, 634, 730, 1132, 1268, 1415, 1460, 1585, 2264, 2536, 2830, 2920, 3170, 5660, 6340, 11320, 12680, 20659, 23141, 41318, 46282, 82636, 89711, 92564, 103295, 115705, 165272, 179422, 185128, 206590, 231410, 358844, 413180, 448555, 462820, 717688, 826360, 897110, 925640, 1794220, 3588440, 6548903, 13097806, 26195612, 32744515, 52391224, 65489030, 130978060, 261956120]

約数ペア:

[(1, 261956120), (2, 130978060), (4, 65489030), (5, 52391224), (8, 32744515), (10, 26195612), (20, 13097806), (40, 6548903), (73, 3588440), (146, 1794220), (283, 925640), (292, 897110), (317, 826360), (365, 717688), (566, 462820), (584, 448555), (634, 413180), (730, 358844), (1132, 231410), (1268, 206590), (1415, 185128), (1460, 179422), (1585, 165272), (2264, 115705), (2536, 103295), (2830, 92564), (2920, 89711), (3170, 82636), (5660, 46282), (6340, 41318), (11320, 23141), (12680, 20659)]