20722625

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2153}}^1$

素因数の和:2186

約数の個数: 32

約数和(自身を含む): 32258304

約数和(自身を除く): 11535679

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 875, 1375, 1925, 2153, 9625, 10765, 15071, 23683, 53825, 75355, 118415, 165781, 269125, 376775, 592075, 828905, 1883875, 2960375, 4144525, 20722625]

約数ペア:

[(1, 20722625), (5, 4144525), (7, 2960375), (11, 1883875), (25, 828905), (35, 592075), (55, 376775), (77, 269125), (125, 165781), (175, 118415), (275, 75355), (385, 53825), (875, 23683), (1375, 15071), (1925, 10765), (2153, 9625)]