20727120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1289}}^1$

素因数の和:1372

約数の個数: 80

約数和(自身を含む): 65263680

約数和(自身を除く): 44536560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 268, 335, 402, 536, 670, 804, 1005, 1072, 1289, 1340, 1608, 2010, 2578, 2680, 3216, 3867, 4020, 5156, 5360, 6445, 7734, 8040, 10312, 12890, 15468, 16080, 19335, 20624, 25780, 30936, 38670, 51560, 61872, 77340, 86363, 103120, 154680, 172726, 259089, 309360, 345452, 431815, 518178, 690904, 863630, 1036356, 1295445, 1381808, 1727260, 2072712, 2590890, 3454520, 4145424, 5181780, 6909040, 10363560, 20727120]

約数ペア:

[(1, 20727120), (2, 10363560), (3, 6909040), (4, 5181780), (5, 4145424), (6, 3454520), (8, 2590890), (10, 2072712), (12, 1727260), (15, 1381808), (16, 1295445), (20, 1036356), (24, 863630), (30, 690904), (40, 518178), (48, 431815), (60, 345452), (67, 309360), (80, 259089), (120, 172726), (134, 154680), (201, 103120), (240, 86363), (268, 77340), (335, 61872), (402, 51560), (536, 38670), (670, 30936), (804, 25780), (1005, 20624), (1072, 19335), (1289, 16080), (1340, 15468), (1608, 12890), (2010, 10312), (2578, 8040), (2680, 7734), (3216, 6445), (3867, 5360), (4020, 5156)]