56131880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{653}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 145031040

約数和(自身を除く): 88899160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 307, 614, 653, 1228, 1306, 1535, 2149, 2456, 2612, 3070, 3265, 4298, 4571, 5224, 6140, 6530, 8596, 9142, 10745, 12280, 13060, 17192, 18284, 21490, 22855, 26120, 36568, 42980, 45710, 85960, 91420, 182840, 200471, 400942, 801884, 1002355, 1403297, 1603768, 2004710, 2806594, 4009420, 5613188, 7016485, 8018840, 11226376, 14032970, 28065940, 56131880]

約数ペア:

[(1, 56131880), (2, 28065940), (4, 14032970), (5, 11226376), (7, 8018840), (8, 7016485), (10, 5613188), (14, 4009420), (20, 2806594), (28, 2004710), (35, 1603768), (40, 1403297), (56, 1002355), (70, 801884), (140, 400942), (280, 200471), (307, 182840), (614, 91420), (653, 85960), (1228, 45710), (1306, 42980), (1535, 36568), (2149, 26120), (2456, 22855), (2612, 21490), (3070, 18284), (3265, 17192), (4298, 13060), (4571, 12280), (5224, 10745), (6140, 9142), (6530, 8596)]