28205765

素因数分解:

$5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{101}}^2$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 39563520

約数和(自身を除く): 11357755

約数列:

[1, 5, 7, 35, 79, 101, 395, 505, 553, 707, 2765, 3535, 7979, 10201, 39895, 51005, 55853, 71407, 279265, 357035, 805879, 4029395, 5641153, 28205765]

約数ペア:

[(1, 28205765), (5, 5641153), (7, 4029395), (35, 805879), (79, 357035), (101, 279265), (395, 71407), (505, 55853), (553, 51005), (707, 39895), (2765, 10201), (3535, 7979)]