21577320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19979}}^1$

素因数の和:19999

約数の個数: 64

約数和(自身を含む): 71928000

約数和(自身を除く): 50350680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19979, 39958, 59937, 79916, 99895, 119874, 159832, 179811, 199790, 239748, 299685, 359622, 399580, 479496, 539433, 599370, 719244, 799160, 899055, 1078866, 1198740, 1438488, 1798110, 2157732, 2397480, 2697165, 3596220, 4315464, 5394330, 7192440, 10788660, 21577320]

約数ペア:

[(1, 21577320), (2, 10788660), (3, 7192440), (4, 5394330), (5, 4315464), (6, 3596220), (8, 2697165), (9, 2397480), (10, 2157732), (12, 1798110), (15, 1438488), (18, 1198740), (20, 1078866), (24, 899055), (27, 799160), (30, 719244), (36, 599370), (40, 539433), (45, 479496), (54, 399580), (60, 359622), (72, 299685), (90, 239748), (108, 199790), (120, 179811), (135, 159832), (180, 119874), (216, 99895), (270, 79916), (360, 59937), (540, 39958), (1080, 19979)]