28125000

素因数分解:

$2^3\times 3^2\times 5^8$

素因数の和:52

約数の個数: 108

約数和(自身を含む): 95214795

約数和(自身を除く): 67089795

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, 625, 750, 900, 1000, 1125, 1250, 1500, 1800, 1875, 2250, 2500, 3000, 3125, 3750, 4500, 5000, 5625, 6250, 7500, 9000, 9375, 11250, 12500, 15000, 15625, 18750, 22500, 25000, 28125, 31250, 37500, 45000, 46875, 56250, 62500, 75000, 78125, 93750, 112500, 125000, 140625, 156250, 187500, 225000, 234375, 281250, 312500, 375000, 390625, 468750, 562500, 625000, 703125, 781250, 937500, 1125000, 1171875, 1406250, 1562500, 1875000, 2343750, 2812500, 3125000, 3515625, 4687500, 5625000, 7031250, 9375000, 14062500, 28125000]

約数ペア:

[(1, 28125000), (2, 14062500), (3, 9375000), (4, 7031250), (5, 5625000), (6, 4687500), (8, 3515625), (9, 3125000), (10, 2812500), (12, 2343750), (15, 1875000), (18, 1562500), (20, 1406250), (24, 1171875), (25, 1125000), (30, 937500), (36, 781250), (40, 703125), (45, 625000), (50, 562500), (60, 468750), (72, 390625), (75, 375000), (90, 312500), (100, 281250), (120, 234375), (125, 225000), (150, 187500), (180, 156250), (200, 140625), (225, 125000), (250, 112500), (300, 93750), (360, 78125), (375, 75000), (450, 62500), (500, 56250), (600, 46875), (625, 45000), (750, 37500), (900, 31250), (1000, 28125), (1125, 25000), (1250, 22500), (1500, 18750), (1800, 15625), (1875, 15000), (2250, 12500), (2500, 11250), (3000, 9375), (3125, 9000), (3750, 7500), (4500, 6250), (5000, 5625)]