28387380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67589}}^1$

素因数の和:67608

約数の個数: 48

約数和(自身を含む): 90840960

約数和(自身を除く): 62453580

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, 67589, 135178, 202767, 270356, 337945, 405534, 473123, 675890, 811068, 946246, 1013835, 1351780, 1419369, 1892492, 2027670, 2365615, 2838738, 4055340, 4731230, 5677476, 7096845, 9462460, 14193690, 28387380]

約数ペア:

[(1, 28387380), (2, 14193690), (3, 9462460), (4, 7096845), (5, 5677476), (6, 4731230), (7, 4055340), (10, 2838738), (12, 2365615), (14, 2027670), (15, 1892492), (20, 1419369), (21, 1351780), (28, 1013835), (30, 946246), (35, 811068), (42, 675890), (60, 473123), (70, 405534), (84, 337945), (105, 270356), (140, 202767), (210, 135178), (420, 67589)]