28392420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67601}}^1$

素因数の和:67620

約数の個数: 48

約数和(自身を含む): 90857088

約数和(自身を除く): 62464668

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, 67601, 135202, 202803, 270404, 338005, 405606, 473207, 676010, 811212, 946414, 1014015, 1352020, 1419621, 1892828, 2028030, 2366035, 2839242, 4056060, 4732070, 5678484, 7098105, 9464140, 14196210, 28392420]

約数ペア:

[(1, 28392420), (2, 14196210), (3, 9464140), (4, 7098105), (5, 5678484), (6, 4732070), (7, 4056060), (10, 2839242), (12, 2366035), (14, 2028030), (15, 1892828), (20, 1419621), (21, 1352020), (28, 1014015), (30, 946414), (35, 811212), (42, 676010), (60, 473207), (70, 405606), (84, 338005), (105, 270404), (140, 202803), (210, 135202), (420, 67601)]