20101680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27919}}^1$

素因数の和:27938

約数の個数: 60

約数和(自身を含む): 67510560

約数和(自身を除く): 47408880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27919, 55838, 83757, 111676, 139595, 167514, 223352, 251271, 279190, 335028, 418785, 446704, 502542, 558380, 670056, 837570, 1005084, 1116760, 1256355, 1340112, 1675140, 2010168, 2233520, 2512710, 3350280, 4020336, 5025420, 6700560, 10050840, 20101680]

約数ペア:

[(1, 20101680), (2, 10050840), (3, 6700560), (4, 5025420), (5, 4020336), (6, 3350280), (8, 2512710), (9, 2233520), (10, 2010168), (12, 1675140), (15, 1340112), (16, 1256355), (18, 1116760), (20, 1005084), (24, 837570), (30, 670056), (36, 558380), (40, 502542), (45, 446704), (48, 418785), (60, 335028), (72, 279190), (80, 251271), (90, 223352), (120, 167514), (144, 139595), (180, 111676), (240, 83757), (360, 55838), (720, 27919)]