28723380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68389}}^1$

素因数の和:68408

約数の個数: 48

約数和(自身を含む): 91916160

約数和(自身を除く): 63192780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68389, 136778, 205167, 273556, 341945, 410334, 478723, 683890, 820668, 957446, 1025835, 1367780, 1436169, 1914892, 2051670, 2393615, 2872338, 4103340, 4787230, 5744676, 7180845, 9574460, 14361690, 28723380]

約数ペア:

[(1, 28723380), (2, 14361690), (3, 9574460), (4, 7180845), (5, 5744676), (6, 4787230), (7, 4103340), (10, 2872338), (12, 2393615), (14, 2051670), (15, 1914892), (20, 1436169), (21, 1367780), (28, 1025835), (30, 957446), (35, 820668), (42, 683890), (60, 478723), (70, 410334), (84, 341945), (105, 273556), (140, 205167), (210, 136778), (420, 68389)]