31710980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2729}}^1$

素因数の和:2828

約数の個数: 48

約数和(自身を含む): 77051520

約数和(自身を除く): 45340540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1660, 2324, 2729, 2905, 5458, 5810, 10916, 11620, 13645, 19103, 27290, 38206, 54580, 76412, 95515, 191030, 226507, 382060, 453014, 906028, 1132535, 1585549, 2265070, 3171098, 4530140, 6342196, 7927745, 15855490, 31710980]

約数ペア:

[(1, 31710980), (2, 15855490), (4, 7927745), (5, 6342196), (7, 4530140), (10, 3171098), (14, 2265070), (20, 1585549), (28, 1132535), (35, 906028), (70, 453014), (83, 382060), (140, 226507), (166, 191030), (332, 95515), (415, 76412), (581, 54580), (830, 38206), (1162, 27290), (1660, 19103), (2324, 13645), (2729, 11620), (2905, 10916), (5458, 5810)]