20438280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56773}}^1$

素因数の和:56790

約数の個数: 48

約数和(自身を含む): 66425580

約数和(自身を除く): 45987300

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, 56773, 113546, 170319, 227092, 283865, 340638, 454184, 510957, 567730, 681276, 851595, 1021914, 1135460, 1362552, 1703190, 2043828, 2270920, 2554785, 3406380, 4087656, 5109570, 6812760, 10219140, 20438280]

約数ペア:

[(1, 20438280), (2, 10219140), (3, 6812760), (4, 5109570), (5, 4087656), (6, 3406380), (8, 2554785), (9, 2270920), (10, 2043828), (12, 1703190), (15, 1362552), (18, 1135460), (20, 1021914), (24, 851595), (30, 681276), (36, 567730), (40, 510957), (45, 454184), (60, 340638), (72, 283865), (90, 227092), (120, 170319), (180, 113546), (360, 56773)]