20600440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:149

約数の個数: 128

約数和(自身を含む): 57024000

約数和(自身を除く): 36423560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 43, 56, 58, 59, 70, 86, 116, 118, 140, 145, 172, 203, 215, 232, 236, 280, 290, 295, 301, 344, 406, 413, 430, 472, 580, 590, 602, 812, 826, 860, 1015, 1160, 1180, 1204, 1247, 1505, 1624, 1652, 1711, 1720, 2030, 2065, 2360, 2408, 2494, 2537, 3010, 3304, 3422, 4060, 4130, 4988, 5074, 6020, 6235, 6844, 8120, 8260, 8555, 8729, 9976, 10148, 11977, 12040, 12470, 12685, 13688, 16520, 17110, 17458, 17759, 20296, 23954, 24940, 25370, 34220, 34916, 35518, 43645, 47908, 49880, 50740, 59885, 68440, 69832, 71036, 73573, 87290, 88795, 95816, 101480, 119770, 142072, 147146, 174580, 177590, 239540, 294292, 349160, 355180, 367865, 479080, 515011, 588584, 710360, 735730, 1030022, 1471460, 2060044, 2575055, 2942920, 4120088, 5150110, 10300220, 20600440]

約数ペア:

[(1, 20600440), (2, 10300220), (4, 5150110), (5, 4120088), (7, 2942920), (8, 2575055), (10, 2060044), (14, 1471460), (20, 1030022), (28, 735730), (29, 710360), (35, 588584), (40, 515011), (43, 479080), (56, 367865), (58, 355180), (59, 349160), (70, 294292), (86, 239540), (116, 177590), (118, 174580), (140, 147146), (145, 142072), (172, 119770), (203, 101480), (215, 95816), (232, 88795), (236, 87290), (280, 73573), (290, 71036), (295, 69832), (301, 68440), (344, 59885), (406, 50740), (413, 49880), (430, 47908), (472, 43645), (580, 35518), (590, 34916), (602, 34220), (812, 25370), (826, 24940), (860, 23954), (1015, 20296), (1160, 17759), (1180, 17458), (1204, 17110), (1247, 16520), (1505, 13688), (1624, 12685), (1652, 12470), (1711, 12040), (1720, 11977), (2030, 10148), (2065, 9976), (2360, 8729), (2408, 8555), (2494, 8260), (2537, 8120), (3010, 6844), (3304, 6235), (3422, 6020), (4060, 5074), (4130, 4988)]