20905200

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5807}}^1$

素因数の和:5831

約数の個数: 90

約数和(自身を含む): 72559344

約数和(自身を除く): 51654144

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, 5807, 11614, 17421, 23228, 29035, 34842, 46456, 52263, 58070, 69684, 87105, 92912, 104526, 116140, 139368, 145175, 174210, 209052, 232280, 261315, 278736, 290350, 348420, 418104, 435525, 464560, 522630, 580700, 696840, 836208, 871050, 1045260, 1161400, 1306575, 1393680, 1742100, 2090520, 2322800, 2613150, 3484200, 4181040, 5226300, 6968400, 10452600, 20905200]

約数ペア:

[(1, 20905200), (2, 10452600), (3, 6968400), (4, 5226300), (5, 4181040), (6, 3484200), (8, 2613150), (9, 2322800), (10, 2090520), (12, 1742100), (15, 1393680), (16, 1306575), (18, 1161400), (20, 1045260), (24, 871050), (25, 836208), (30, 696840), (36, 580700), (40, 522630), (45, 464560), (48, 435525), (50, 418104), (60, 348420), (72, 290350), (75, 278736), (80, 261315), (90, 232280), (100, 209052), (120, 174210), (144, 145175), (150, 139368), (180, 116140), (200, 104526), (225, 92912), (240, 87105), (300, 69684), (360, 58070), (400, 52263), (450, 46456), (600, 34842), (720, 29035), (900, 23228), (1200, 17421), (1800, 11614), (3600, 5807)]