21020400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5839}}^1$

素因数の和:5863

約数の個数: 90

約数和(自身を含む): 72959120

約数和(自身を除く): 51938720

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, 5839, 11678, 17517, 23356, 29195, 35034, 46712, 52551, 58390, 70068, 87585, 93424, 105102, 116780, 140136, 145975, 175170, 210204, 233560, 262755, 280272, 291950, 350340, 420408, 437925, 467120, 525510, 583900, 700680, 840816, 875850, 1051020, 1167800, 1313775, 1401360, 1751700, 2102040, 2335600, 2627550, 3503400, 4204080, 5255100, 7006800, 10510200, 21020400]

約数ペア:

[(1, 21020400), (2, 10510200), (3, 7006800), (4, 5255100), (5, 4204080), (6, 3503400), (8, 2627550), (9, 2335600), (10, 2102040), (12, 1751700), (15, 1401360), (16, 1313775), (18, 1167800), (20, 1051020), (24, 875850), (25, 840816), (30, 700680), (36, 583900), (40, 525510), (45, 467120), (48, 437925), (50, 420408), (60, 350340), (72, 291950), (75, 280272), (80, 262755), (90, 233560), (100, 210204), (120, 175170), (144, 145975), (150, 140136), (180, 116780), (200, 105102), (225, 93424), (240, 87585), (300, 70068), (360, 58390), (400, 52551), (450, 46712), (600, 35034), (720, 29195), (900, 23356), (1200, 17517), (1800, 11678), (3600, 5839)]