20257560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18757}}^1$

素因数の和:18777

約数の個数: 64

約数和(自身を含む): 67528800

約数和(自身を除く): 47271240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18757, 37514, 56271, 75028, 93785, 112542, 150056, 168813, 187570, 225084, 281355, 337626, 375140, 450168, 506439, 562710, 675252, 750280, 844065, 1012878, 1125420, 1350504, 1688130, 2025756, 2250840, 2532195, 3376260, 4051512, 5064390, 6752520, 10128780, 20257560]

約数ペア:

[(1, 20257560), (2, 10128780), (3, 6752520), (4, 5064390), (5, 4051512), (6, 3376260), (8, 2532195), (9, 2250840), (10, 2025756), (12, 1688130), (15, 1350504), (18, 1125420), (20, 1012878), (24, 844065), (27, 750280), (30, 675252), (36, 562710), (40, 506439), (45, 450168), (54, 375140), (60, 337626), (72, 281355), (90, 225084), (108, 187570), (120, 168813), (135, 150056), (180, 112542), (216, 93785), (270, 75028), (360, 56271), (540, 37514), (1080, 18757)]