20098800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{1861}}^1$

素因数の和:1888

約数の個数: 120

約数和(自身を含む): 71575280

約数和(自身を除く): 51476480

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, 1861, 2160, 2700, 3600, 3722, 5400, 5583, 7444, 9305, 10800, 11166, 14888, 16749, 18610, 22332, 27915, 29776, 33498, 37220, 44664, 46525, 50247, 55830, 66996, 74440, 83745, 89328, 93050, 100494, 111660, 133992, 139575, 148880, 167490, 186100, 200988, 223320, 251235, 267984, 279150, 334980, 372200, 401976, 418725, 446640, 502470, 558300, 669960, 744400, 803952, 837450, 1004940, 1116600, 1256175, 1339920, 1674900, 2009880, 2233200, 2512350, 3349800, 4019760, 5024700, 6699600, 10049400, 20098800]

約数ペア:

[(1, 20098800), (2, 10049400), (3, 6699600), (4, 5024700), (5, 4019760), (6, 3349800), (8, 2512350), (9, 2233200), (10, 2009880), (12, 1674900), (15, 1339920), (16, 1256175), (18, 1116600), (20, 1004940), (24, 837450), (25, 803952), (27, 744400), (30, 669960), (36, 558300), (40, 502470), (45, 446640), (48, 418725), (50, 401976), (54, 372200), (60, 334980), (72, 279150), (75, 267984), (80, 251235), (90, 223320), (100, 200988), (108, 186100), (120, 167490), (135, 148880), (144, 139575), (150, 133992), (180, 111660), (200, 100494), (216, 93050), (225, 89328), (240, 83745), (270, 74440), (300, 66996), (360, 55830), (400, 50247), (432, 46525), (450, 44664), (540, 37220), (600, 33498), (675, 29776), (720, 27915), (900, 22332), (1080, 18610), (1200, 16749), (1350, 14888), (1800, 11166), (1861, 10800), (2160, 9305), (2700, 7444), (3600, 5583), (3722, 5400)]