21552080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1289}}^1$

素因数の和:1332

約数の個数: 80

約数和(自身を含む): 57585600

約数和(自身を除く): 36033520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1289, 1520, 1672, 2090, 2578, 3344, 4180, 5156, 6445, 8360, 10312, 12890, 14179, 16720, 20624, 24491, 25780, 28358, 48982, 51560, 56716, 70895, 97964, 103120, 113432, 122455, 141790, 195928, 226864, 244910, 269401, 283580, 391856, 489820, 538802, 567160, 979640, 1077604, 1134320, 1347005, 1959280, 2155208, 2694010, 4310416, 5388020, 10776040, 21552080]

約数ペア:

[(1, 21552080), (2, 10776040), (4, 5388020), (5, 4310416), (8, 2694010), (10, 2155208), (11, 1959280), (16, 1347005), (19, 1134320), (20, 1077604), (22, 979640), (38, 567160), (40, 538802), (44, 489820), (55, 391856), (76, 283580), (80, 269401), (88, 244910), (95, 226864), (110, 195928), (152, 141790), (176, 122455), (190, 113432), (209, 103120), (220, 97964), (304, 70895), (380, 56716), (418, 51560), (440, 48982), (760, 28358), (836, 25780), (880, 24491), (1045, 20624), (1289, 16720), (1520, 14179), (1672, 12890), (2090, 10312), (2578, 8360), (3344, 6445), (4180, 5156)]