20401200

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{1889}}^1$

素因数の和:1916

約数の個数: 120

約数和(自身を含む): 72651600

約数和(自身を除く): 52250400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 90, 100, 108, 120, 135, 144, 150, 180, 200, 216, 225, 240, 270, 300, 360, 400, 432, 450, 540, 600, 675, 720, 900, 1080, 1200, 1350, 1800, 1889, 2160, 2700, 3600, 3778, 5400, 5667, 7556, 9445, 10800, 11334, 15112, 17001, 18890, 22668, 28335, 30224, 34002, 37780, 45336, 47225, 51003, 56670, 68004, 75560, 85005, 90672, 94450, 102006, 113340, 136008, 141675, 151120, 170010, 188900, 204012, 226680, 255015, 272016, 283350, 340020, 377800, 408024, 425025, 453360, 510030, 566700, 680040, 755600, 816048, 850050, 1020060, 1133400, 1275075, 1360080, 1700100, 2040120, 2266800, 2550150, 3400200, 4080240, 5100300, 6800400, 10200600, 20401200]

約数ペア:

[(1, 20401200), (2, 10200600), (3, 6800400), (4, 5100300), (5, 4080240), (6, 3400200), (8, 2550150), (9, 2266800), (10, 2040120), (12, 1700100), (15, 1360080), (16, 1275075), (18, 1133400), (20, 1020060), (24, 850050), (25, 816048), (27, 755600), (30, 680040), (36, 566700), (40, 510030), (45, 453360), (48, 425025), (50, 408024), (54, 377800), (60, 340020), (72, 283350), (75, 272016), (80, 255015), (90, 226680), (100, 204012), (108, 188900), (120, 170010), (135, 151120), (144, 141675), (150, 136008), (180, 113340), (200, 102006), (216, 94450), (225, 90672), (240, 85005), (270, 75560), (300, 68004), (360, 56670), (400, 51003), (432, 47225), (450, 45336), (540, 37780), (600, 34002), (675, 30224), (720, 28335), (900, 22668), (1080, 18890), (1200, 17001), (1350, 15112), (1800, 11334), (1889, 10800), (2160, 9445), (2700, 7556), (3600, 5667), (3778, 5400)]