28154960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18523}}^1$

素因数の和:18555

約数の個数: 40

約数和(自身を含む): 68909280

約数和(自身を除く): 40754320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18523, 37046, 74092, 92615, 148184, 185230, 296368, 351937, 370460, 703874, 740920, 1407748, 1481840, 1759685, 2815496, 3519370, 5630992, 7038740, 14077480, 28154960]

約数ペア:

[(1, 28154960), (2, 14077480), (4, 7038740), (5, 5630992), (8, 3519370), (10, 2815496), (16, 1759685), (19, 1481840), (20, 1407748), (38, 740920), (40, 703874), (76, 370460), (80, 351937), (95, 296368), (152, 185230), (190, 148184), (304, 92615), (380, 74092), (760, 37046), (1520, 18523)]