12642140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1237}}^1$

素因数の和:1326

約数の個数: 48

約数和(自身を含む): 30781632

約数和(自身を除く): 18139492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1237, 1460, 2044, 2474, 2555, 4948, 5110, 6185, 8659, 10220, 12370, 17318, 24740, 34636, 43295, 86590, 90301, 173180, 180602, 361204, 451505, 632107, 903010, 1264214, 1806020, 2528428, 3160535, 6321070, 12642140]

約数ペア:

[(1, 12642140), (2, 6321070), (4, 3160535), (5, 2528428), (7, 1806020), (10, 1264214), (14, 903010), (20, 632107), (28, 451505), (35, 361204), (70, 180602), (73, 173180), (140, 90301), (146, 86590), (292, 43295), (365, 34636), (511, 24740), (730, 17318), (1022, 12370), (1237, 10220), (1460, 8659), (2044, 6185), (2474, 5110), (2555, 4948)]