20810520

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{2141}}^1$

素因数の和:2167

約数の個数: 96

約数和(自身を含む): 70171920

約数和(自身を除く): 49361400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2141, 2430, 3240, 4282, 4860, 6423, 8564, 9720, 10705, 12846, 17128, 19269, 21410, 25692, 32115, 38538, 42820, 51384, 57807, 64230, 77076, 85640, 96345, 115614, 128460, 154152, 173421, 192690, 231228, 256920, 289035, 346842, 385380, 462456, 520263, 578070, 693684, 770760, 867105, 1040526, 1156140, 1387368, 1734210, 2081052, 2312280, 2601315, 3468420, 4162104, 5202630, 6936840, 10405260, 20810520]

約数ペア:

[(1, 20810520), (2, 10405260), (3, 6936840), (4, 5202630), (5, 4162104), (6, 3468420), (8, 2601315), (9, 2312280), (10, 2081052), (12, 1734210), (15, 1387368), (18, 1156140), (20, 1040526), (24, 867105), (27, 770760), (30, 693684), (36, 578070), (40, 520263), (45, 462456), (54, 385380), (60, 346842), (72, 289035), (81, 256920), (90, 231228), (108, 192690), (120, 173421), (135, 154152), (162, 128460), (180, 115614), (216, 96345), (243, 85640), (270, 77076), (324, 64230), (360, 57807), (405, 51384), (486, 42820), (540, 38538), (648, 32115), (810, 25692), (972, 21410), (1080, 19269), (1215, 17128), (1620, 12846), (1944, 10705), (2141, 9720), (2430, 8564), (3240, 6423), (4282, 4860)]