20408400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5669}}^1$

素因数の和:5693

約数の個数: 90

約数和(自身を含む): 70835310

約数和(自身を除く): 50426910

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 300, 360, 400, 450, 600, 720, 900, 1200, 1800, 3600, 5669, 11338, 17007, 22676, 28345, 34014, 45352, 51021, 56690, 68028, 85035, 90704, 102042, 113380, 136056, 141725, 170070, 204084, 226760, 255105, 272112, 283450, 340140, 408168, 425175, 453520, 510210, 566900, 680280, 816336, 850350, 1020420, 1133800, 1275525, 1360560, 1700700, 2040840, 2267600, 2551050, 3401400, 4081680, 5102100, 6802800, 10204200, 20408400]

約数ペア:

[(1, 20408400), (2, 10204200), (3, 6802800), (4, 5102100), (5, 4081680), (6, 3401400), (8, 2551050), (9, 2267600), (10, 2040840), (12, 1700700), (15, 1360560), (16, 1275525), (18, 1133800), (20, 1020420), (24, 850350), (25, 816336), (30, 680280), (36, 566900), (40, 510210), (45, 453520), (48, 425175), (50, 408168), (60, 340140), (72, 283450), (75, 272112), (80, 255105), (90, 226760), (100, 204084), (120, 170070), (144, 141725), (150, 136056), (180, 113380), (200, 102042), (225, 90704), (240, 85035), (300, 68028), (360, 56690), (400, 51021), (450, 45352), (600, 34014), (720, 28345), (900, 22676), (1200, 17007), (1800, 11338), (3600, 5669)]