20764049145

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{279707}}^1$

素因数の和:279830

約数の個数: 48

約数和(自身を含む): 39029335488

約数和(自身を除く): 18265286343

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 101, 105, 147, 245, 303, 505, 707, 735, 1515, 2121, 3535, 4949, 10605, 14847, 24745, 74235, 279707, 839121, 1398535, 1957949, 4195605, 5873847, 9789745, 13705643, 28250407, 29369235, 41116929, 68528215, 84751221, 141252035, 197752849, 205584645, 423756105, 593258547, 988764245, 1384269943, 2966292735, 4152809829, 6921349715, 20764049145]

約数ペア:

[(1, 20764049145), (3, 6921349715), (5, 4152809829), (7, 2966292735), (15, 1384269943), (21, 988764245), (35, 593258547), (49, 423756105), (101, 205584645), (105, 197752849), (147, 141252035), (245, 84751221), (303, 68528215), (505, 41116929), (707, 29369235), (735, 28250407), (1515, 13705643), (2121, 9789745), (3535, 5873847), (4949, 4195605), (10605, 1957949), (14847, 1398535), (24745, 839121), (74235, 279707)]