25284280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1237}}^1$

素因数の和:1328

約数の個数: 64

約数和(自身を含む): 65960640

約数和(自身を除く): 40676360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1237, 1460, 2044, 2474, 2555, 2920, 4088, 4948, 5110, 6185, 8659, 9896, 10220, 12370, 17318, 20440, 24740, 34636, 43295, 49480, 69272, 86590, 90301, 173180, 180602, 346360, 361204, 451505, 632107, 722408, 903010, 1264214, 1806020, 2528428, 3160535, 3612040, 5056856, 6321070, 12642140, 25284280]

約数ペア:

[(1, 25284280), (2, 12642140), (4, 6321070), (5, 5056856), (7, 3612040), (8, 3160535), (10, 2528428), (14, 1806020), (20, 1264214), (28, 903010), (35, 722408), (40, 632107), (56, 451505), (70, 361204), (73, 346360), (140, 180602), (146, 173180), (280, 90301), (292, 86590), (365, 69272), (511, 49480), (584, 43295), (730, 34636), (1022, 24740), (1237, 20440), (1460, 17318), (2044, 12370), (2474, 10220), (2555, 9896), (2920, 8659), (4088, 6185), (4948, 5110)]