19695120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{599}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 61603200

約数和(自身を除く): 41908080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 599, 685, 822, 1096, 1198, 1370, 1644, 1797, 2055, 2192, 2396, 2740, 2995, 3288, 3594, 4110, 4792, 5480, 5990, 6576, 7188, 8220, 8985, 9584, 10960, 11980, 14376, 16440, 17970, 23960, 28752, 32880, 35940, 47920, 71880, 82063, 143760, 164126, 246189, 328252, 410315, 492378, 656504, 820630, 984756, 1230945, 1313008, 1641260, 1969512, 2461890, 3282520, 3939024, 4923780, 6565040, 9847560, 19695120]

約数ペア:

[(1, 19695120), (2, 9847560), (3, 6565040), (4, 4923780), (5, 3939024), (6, 3282520), (8, 2461890), (10, 1969512), (12, 1641260), (15, 1313008), (16, 1230945), (20, 984756), (24, 820630), (30, 656504), (40, 492378), (48, 410315), (60, 328252), (80, 246189), (120, 164126), (137, 143760), (240, 82063), (274, 71880), (411, 47920), (548, 35940), (599, 32880), (685, 28752), (822, 23960), (1096, 17970), (1198, 16440), (1370, 14376), (1644, 11980), (1797, 10960), (2055, 9584), (2192, 8985), (2396, 8220), (2740, 7188), (2995, 6576), (3288, 5990), (3594, 5480), (4110, 4792)]