20838870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1979}}^1$

素因数の和:2011

約数の個数: 80

約数和(自身を含む): 60374160

約数和(自身を除く): 39535290

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 1979, 2106, 3510, 3958, 5265, 5937, 9895, 10530, 11874, 17811, 19790, 25727, 29685, 35622, 51454, 53433, 59370, 77181, 89055, 106866, 128635, 154362, 160299, 178110, 231543, 257270, 267165, 320598, 385905, 463086, 534330, 694629, 771810, 801495, 1157715, 1389258, 1602990, 2083887, 2315430, 3473145, 4167774, 6946290, 10419435, 20838870]

約数ペア:

[(1, 20838870), (2, 10419435), (3, 6946290), (5, 4167774), (6, 3473145), (9, 2315430), (10, 2083887), (13, 1602990), (15, 1389258), (18, 1157715), (26, 801495), (27, 771810), (30, 694629), (39, 534330), (45, 463086), (54, 385905), (65, 320598), (78, 267165), (81, 257270), (90, 231543), (117, 178110), (130, 160299), (135, 154362), (162, 128635), (195, 106866), (234, 89055), (270, 77181), (351, 59370), (390, 53433), (405, 51454), (585, 35622), (702, 29685), (810, 25727), (1053, 19790), (1170, 17811), (1755, 11874), (1979, 10530), (2106, 9895), (3510, 5937), (3958, 5265)]