13125000

素因数分解:

$2^3\times 3^1\times 5^7\times 7^1$

素因数の和:51

約数の個数: 128

約数和(自身を含む): 46874880

約数和(自身を除く): 33749880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 625, 700, 750, 840, 875, 1000, 1050, 1250, 1400, 1500, 1750, 1875, 2100, 2500, 2625, 3000, 3125, 3500, 3750, 4200, 4375, 5000, 5250, 6250, 7000, 7500, 8750, 9375, 10500, 12500, 13125, 15000, 15625, 17500, 18750, 21000, 21875, 25000, 26250, 31250, 35000, 37500, 43750, 46875, 52500, 62500, 65625, 75000, 78125, 87500, 93750, 105000, 109375, 125000, 131250, 156250, 175000, 187500, 218750, 234375, 262500, 312500, 328125, 375000, 437500, 468750, 525000, 546875, 625000, 656250, 875000, 937500, 1093750, 1312500, 1640625, 1875000, 2187500, 2625000, 3281250, 4375000, 6562500, 13125000]

約数ペア:

[(1, 13125000), (2, 6562500), (3, 4375000), (4, 3281250), (5, 2625000), (6, 2187500), (7, 1875000), (8, 1640625), (10, 1312500), (12, 1093750), (14, 937500), (15, 875000), (20, 656250), (21, 625000), (24, 546875), (25, 525000), (28, 468750), (30, 437500), (35, 375000), (40, 328125), (42, 312500), (50, 262500), (56, 234375), (60, 218750), (70, 187500), (75, 175000), (84, 156250), (100, 131250), (105, 125000), (120, 109375), (125, 105000), (140, 93750), (150, 87500), (168, 78125), (175, 75000), (200, 65625), (210, 62500), (250, 52500), (280, 46875), (300, 43750), (350, 37500), (375, 35000), (420, 31250), (500, 26250), (525, 25000), (600, 21875), (625, 21000), (700, 18750), (750, 17500), (840, 15625), (875, 15000), (1000, 13125), (1050, 12500), (1250, 10500), (1400, 9375), (1500, 8750), (1750, 7500), (1875, 7000), (2100, 6250), (2500, 5250), (2625, 5000), (3000, 4375), (3125, 4200), (3500, 3750)]