20085870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{947}}^1$

素因数の和:1065

約数の個数: 64

約数和(自身を含む): 55696896

約数和(自身を除く): 35611026

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 101, 105, 202, 210, 303, 505, 606, 707, 947, 1010, 1414, 1515, 1894, 2121, 2841, 3030, 3535, 4242, 4735, 5682, 6629, 7070, 9470, 10605, 13258, 14205, 19887, 21210, 28410, 33145, 39774, 66290, 95647, 99435, 191294, 198870, 286941, 478235, 573882, 669529, 956470, 1339058, 1434705, 2008587, 2869410, 3347645, 4017174, 6695290, 10042935, 20085870]

約数ペア:

[(1, 20085870), (2, 10042935), (3, 6695290), (5, 4017174), (6, 3347645), (7, 2869410), (10, 2008587), (14, 1434705), (15, 1339058), (21, 956470), (30, 669529), (35, 573882), (42, 478235), (70, 286941), (101, 198870), (105, 191294), (202, 99435), (210, 95647), (303, 66290), (505, 39774), (606, 33145), (707, 28410), (947, 21210), (1010, 19887), (1414, 14205), (1515, 13258), (1894, 10605), (2121, 9470), (2841, 7070), (3030, 6629), (3535, 5682), (4242, 4735)]