21878280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60773}}^1$

素因数の和:60790

約数の個数: 48

約数和(自身を含む): 71105580

約数和(自身を除く): 49227300

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60773, 121546, 182319, 243092, 303865, 364638, 486184, 546957, 607730, 729276, 911595, 1093914, 1215460, 1458552, 1823190, 2187828, 2430920, 2734785, 3646380, 4375656, 5469570, 7292760, 10939140, 21878280]

約数ペア:

[(1, 21878280), (2, 10939140), (3, 7292760), (4, 5469570), (5, 4375656), (6, 3646380), (8, 2734785), (9, 2430920), (10, 2187828), (12, 1823190), (15, 1458552), (18, 1215460), (20, 1093914), (24, 911595), (30, 729276), (36, 607730), (40, 546957), (45, 486184), (60, 364638), (72, 303865), (90, 243092), (120, 182319), (180, 121546), (360, 60773)]