20853700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^3$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 53441024

約数和(自身を除く): 32587324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 961, 1085, 1550, 1922, 2170, 3100, 3844, 4340, 4805, 5425, 6727, 9610, 10850, 13454, 19220, 21700, 24025, 26908, 29791, 33635, 48050, 59582, 67270, 96100, 119164, 134540, 148955, 168175, 208537, 297910, 336350, 417074, 595820, 672700, 744775, 834148, 1042685, 1489550, 2085370, 2979100, 4170740, 5213425, 10426850, 20853700]

約数ペア:

[(1, 20853700), (2, 10426850), (4, 5213425), (5, 4170740), (7, 2979100), (10, 2085370), (14, 1489550), (20, 1042685), (25, 834148), (28, 744775), (31, 672700), (35, 595820), (50, 417074), (62, 336350), (70, 297910), (100, 208537), (124, 168175), (140, 148955), (155, 134540), (175, 119164), (217, 96100), (310, 67270), (350, 59582), (434, 48050), (620, 33635), (700, 29791), (775, 26908), (868, 24025), (961, 21700), (1085, 19220), (1550, 13454), (1922, 10850), (2170, 9610), (3100, 6727), (3844, 5425), (4340, 4805)]