20025000

素因数分解:

$2^3\times 3^2\times 5^5\times {\mathrm{89}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 68550300

約数和(自身を除く): 48525300

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, 89, 90, 100, 120, 125, 150, 178, 180, 200, 225, 250, 267, 300, 356, 360, 375, 445, 450, 500, 534, 600, 625, 712, 750, 801, 890, 900, 1000, 1068, 1125, 1250, 1335, 1500, 1602, 1780, 1800, 1875, 2136, 2225, 2250, 2500, 2670, 3000, 3125, 3204, 3560, 3750, 4005, 4450, 4500, 5000, 5340, 5625, 6250, 6408, 6675, 7500, 8010, 8900, 9000, 9375, 10680, 11125, 11250, 12500, 13350, 15000, 16020, 17800, 18750, 20025, 22250, 22500, 25000, 26700, 28125, 32040, 33375, 37500, 40050, 44500, 45000, 53400, 55625, 56250, 66750, 75000, 80100, 89000, 100125, 111250, 112500, 133500, 160200, 166875, 200250, 222500, 225000, 267000, 278125, 333750, 400500, 445000, 500625, 556250, 667500, 801000, 834375, 1001250, 1112500, 1335000, 1668750, 2002500, 2225000, 2503125, 3337500, 4005000, 5006250, 6675000, 10012500, 20025000]

約数ペア:

[(1, 20025000), (2, 10012500), (3, 6675000), (4, 5006250), (5, 4005000), (6, 3337500), (8, 2503125), (9, 2225000), (10, 2002500), (12, 1668750), (15, 1335000), (18, 1112500), (20, 1001250), (24, 834375), (25, 801000), (30, 667500), (36, 556250), (40, 500625), (45, 445000), (50, 400500), (60, 333750), (72, 278125), (75, 267000), (89, 225000), (90, 222500), (100, 200250), (120, 166875), (125, 160200), (150, 133500), (178, 112500), (180, 111250), (200, 100125), (225, 89000), (250, 80100), (267, 75000), (300, 66750), (356, 56250), (360, 55625), (375, 53400), (445, 45000), (450, 44500), (500, 40050), (534, 37500), (600, 33375), (625, 32040), (712, 28125), (750, 26700), (801, 25000), (890, 22500), (900, 22250), (1000, 20025), (1068, 18750), (1125, 17800), (1250, 16020), (1335, 15000), (1500, 13350), (1602, 12500), (1780, 11250), (1800, 11125), (1875, 10680), (2136, 9375), (2225, 9000), (2250, 8900), (2500, 8010), (2670, 7500), (3000, 6675), (3125, 6408), (3204, 6250), (3560, 5625), (3750, 5340), (4005, 5000), (4450, 4500)]