20850000

素因数分解:

$2^4\times 3^1\times 5^5\times {\mathrm{139}}^1$

素因数の和:175

約数の個数: 120

約数和(自身を含む): 67808160

約数和(自身を除く): 46958160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 139, 150, 200, 240, 250, 278, 300, 375, 400, 417, 500, 556, 600, 625, 695, 750, 834, 1000, 1112, 1200, 1250, 1390, 1500, 1668, 1875, 2000, 2085, 2224, 2500, 2780, 3000, 3125, 3336, 3475, 3750, 4170, 5000, 5560, 6000, 6250, 6672, 6950, 7500, 8340, 9375, 10000, 10425, 11120, 12500, 13900, 15000, 16680, 17375, 18750, 20850, 25000, 27800, 30000, 33360, 34750, 37500, 41700, 50000, 52125, 55600, 69500, 75000, 83400, 86875, 104250, 139000, 150000, 166800, 173750, 208500, 260625, 278000, 347500, 417000, 434375, 521250, 695000, 834000, 868750, 1042500, 1303125, 1390000, 1737500, 2085000, 2606250, 3475000, 4170000, 5212500, 6950000, 10425000, 20850000]

約数ペア:

[(1, 20850000), (2, 10425000), (3, 6950000), (4, 5212500), (5, 4170000), (6, 3475000), (8, 2606250), (10, 2085000), (12, 1737500), (15, 1390000), (16, 1303125), (20, 1042500), (24, 868750), (25, 834000), (30, 695000), (40, 521250), (48, 434375), (50, 417000), (60, 347500), (75, 278000), (80, 260625), (100, 208500), (120, 173750), (125, 166800), (139, 150000), (150, 139000), (200, 104250), (240, 86875), (250, 83400), (278, 75000), (300, 69500), (375, 55600), (400, 52125), (417, 50000), (500, 41700), (556, 37500), (600, 34750), (625, 33360), (695, 30000), (750, 27800), (834, 25000), (1000, 20850), (1112, 18750), (1200, 17375), (1250, 16680), (1390, 15000), (1500, 13900), (1668, 12500), (1875, 11120), (2000, 10425), (2085, 10000), (2224, 9375), (2500, 8340), (2780, 7500), (3000, 6950), (3125, 6672), (3336, 6250), (3475, 6000), (3750, 5560), (4170, 5000)]