19917000

素因数分解:

$2^3\times 3^2\times 5^3\times {\mathrm{2213}}^1$

素因数の和:2240

約数の個数: 96

約数和(自身を含む): 67349880

約数和(自身を除く): 47432880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 750, 900, 1000, 1125, 1500, 1800, 2213, 2250, 3000, 4426, 4500, 6639, 8852, 9000, 11065, 13278, 17704, 19917, 22130, 26556, 33195, 39834, 44260, 53112, 55325, 66390, 79668, 88520, 99585, 110650, 132780, 159336, 165975, 199170, 221300, 265560, 276625, 331950, 398340, 442600, 497925, 553250, 663900, 796680, 829875, 995850, 1106500, 1327800, 1659750, 1991700, 2213000, 2489625, 3319500, 3983400, 4979250, 6639000, 9958500, 19917000]

約数ペア:

[(1, 19917000), (2, 9958500), (3, 6639000), (4, 4979250), (5, 3983400), (6, 3319500), (8, 2489625), (9, 2213000), (10, 1991700), (12, 1659750), (15, 1327800), (18, 1106500), (20, 995850), (24, 829875), (25, 796680), (30, 663900), (36, 553250), (40, 497925), (45, 442600), (50, 398340), (60, 331950), (72, 276625), (75, 265560), (90, 221300), (100, 199170), (120, 165975), (125, 159336), (150, 132780), (180, 110650), (200, 99585), (225, 88520), (250, 79668), (300, 66390), (360, 55325), (375, 53112), (450, 44260), (500, 39834), (600, 33195), (750, 26556), (900, 22130), (1000, 19917), (1125, 17704), (1500, 13278), (1800, 11065), (2213, 9000), (2250, 8852), (3000, 6639), (4426, 4500)]