20799100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:755

約数の個数: 72

約数和(自身を含む): 52857728

約数和(自身を除く): 32058628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 691, 700, 860, 1075, 1204, 1382, 1505, 2150, 2764, 3010, 3455, 4300, 4837, 6020, 6910, 7525, 9674, 13820, 15050, 17275, 19348, 24185, 29713, 30100, 34550, 48370, 59426, 69100, 96740, 118852, 120925, 148565, 207991, 241850, 297130, 415982, 483700, 594260, 742825, 831964, 1039955, 1485650, 2079910, 2971300, 4159820, 5199775, 10399550, 20799100]

約数ペア:

[(1, 20799100), (2, 10399550), (4, 5199775), (5, 4159820), (7, 2971300), (10, 2079910), (14, 1485650), (20, 1039955), (25, 831964), (28, 742825), (35, 594260), (43, 483700), (50, 415982), (70, 297130), (86, 241850), (100, 207991), (140, 148565), (172, 120925), (175, 118852), (215, 96740), (301, 69100), (350, 59426), (430, 48370), (602, 34550), (691, 30100), (700, 29713), (860, 24185), (1075, 19348), (1204, 17275), (1382, 15050), (1505, 13820), (2150, 9674), (2764, 7525), (3010, 6910), (3455, 6020), (4300, 4837)]