21119776720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1216577}}^1$

素因数の和:1216628

約数の個数: 80

約数和(自身を含む): 57928578048

約数和(自身を除く): 36808801328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 1216577, 2433154, 4866308, 6082885, 8516039, 9732616, 12165770, 17032078, 19465232, 24331540, 34064156, 37713887, 42580195, 48663080, 68128312, 75427774, 85160390, 97326160, 136256624, 150855548, 170320780, 188569435, 263997209, 301711096, 340641560, 377138870, 527994418, 603422192, 681283120, 754277740, 1055988836, 1319986045, 1508555480, 2111977672, 2639972090, 3017110960, 4223955344, 5279944180, 10559888360, 21119776720]

約数ペア:

[(1, 21119776720), (2, 10559888360), (4, 5279944180), (5, 4223955344), (7, 3017110960), (8, 2639972090), (10, 2111977672), (14, 1508555480), (16, 1319986045), (20, 1055988836), (28, 754277740), (31, 681283120), (35, 603422192), (40, 527994418), (56, 377138870), (62, 340641560), (70, 301711096), (80, 263997209), (112, 188569435), (124, 170320780), (140, 150855548), (155, 136256624), (217, 97326160), (248, 85160390), (280, 75427774), (310, 68128312), (434, 48663080), (496, 42580195), (560, 37713887), (620, 34064156), (868, 24331540), (1085, 19465232), (1240, 17032078), (1736, 12165770), (2170, 9732616), (2480, 8516039), (3472, 6082885), (4340, 4866308), (8680, 2433154), (17360, 1216577)]