19838000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:152

約数の個数: 160

約数和(自身を含む): 59579520

約数和(自身を除く): 39741520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 109, 112, 125, 130, 140, 175, 182, 200, 208, 218, 250, 260, 280, 325, 350, 364, 400, 436, 455, 500, 520, 545, 560, 650, 700, 728, 763, 872, 875, 910, 1000, 1040, 1090, 1300, 1400, 1417, 1456, 1526, 1625, 1744, 1750, 1820, 2000, 2180, 2275, 2600, 2725, 2800, 2834, 3052, 3250, 3500, 3640, 3815, 4360, 4550, 5200, 5450, 5668, 6104, 6500, 7000, 7085, 7280, 7630, 8720, 9100, 9919, 10900, 11336, 11375, 12208, 13000, 13625, 14000, 14170, 15260, 18200, 19075, 19838, 21800, 22672, 22750, 26000, 27250, 28340, 30520, 35425, 36400, 38150, 39676, 43600, 45500, 49595, 54500, 56680, 61040, 70850, 76300, 79352, 91000, 95375, 99190, 109000, 113360, 141700, 152600, 158704, 177125, 182000, 190750, 198380, 218000, 247975, 283400, 305200, 354250, 381500, 396760, 495950, 566800, 708500, 763000, 793520, 991900, 1239875, 1417000, 1526000, 1983800, 2479750, 2834000, 3967600, 4959500, 9919000, 19838000]

約数ペア:

[(1, 19838000), (2, 9919000), (4, 4959500), (5, 3967600), (7, 2834000), (8, 2479750), (10, 1983800), (13, 1526000), (14, 1417000), (16, 1239875), (20, 991900), (25, 793520), (26, 763000), (28, 708500), (35, 566800), (40, 495950), (50, 396760), (52, 381500), (56, 354250), (65, 305200), (70, 283400), (80, 247975), (91, 218000), (100, 198380), (104, 190750), (109, 182000), (112, 177125), (125, 158704), (130, 152600), (140, 141700), (175, 113360), (182, 109000), (200, 99190), (208, 95375), (218, 91000), (250, 79352), (260, 76300), (280, 70850), (325, 61040), (350, 56680), (364, 54500), (400, 49595), (436, 45500), (455, 43600), (500, 39676), (520, 38150), (545, 36400), (560, 35425), (650, 30520), (700, 28340), (728, 27250), (763, 26000), (872, 22750), (875, 22672), (910, 21800), (1000, 19838), (1040, 19075), (1090, 18200), (1300, 15260), (1400, 14170), (1417, 14000), (1456, 13625), (1526, 13000), (1625, 12208), (1744, 11375), (1750, 11336), (1820, 10900), (2000, 9919), (2180, 9100), (2275, 8720), (2600, 7630), (2725, 7280), (2800, 7085), (2834, 7000), (3052, 6500), (3250, 6104), (3500, 5668), (3640, 5450), (3815, 5200), (4360, 4550)]