21889000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 60652800

約数和(自身を除く): 38763800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 53, 56, 59, 70, 100, 106, 118, 125, 140, 175, 200, 212, 236, 250, 265, 280, 295, 350, 371, 413, 424, 472, 500, 530, 590, 700, 742, 826, 875, 1000, 1060, 1180, 1325, 1400, 1475, 1484, 1652, 1750, 1855, 2065, 2120, 2360, 2650, 2950, 2968, 3127, 3304, 3500, 3710, 4130, 5300, 5900, 6254, 6625, 7000, 7375, 7420, 8260, 9275, 10325, 10600, 11800, 12508, 13250, 14750, 14840, 15635, 16520, 18550, 20650, 21889, 25016, 26500, 29500, 31270, 37100, 41300, 43778, 46375, 51625, 53000, 59000, 62540, 74200, 78175, 82600, 87556, 92750, 103250, 109445, 125080, 156350, 175112, 185500, 206500, 218890, 312700, 371000, 390875, 413000, 437780, 547225, 625400, 781750, 875560, 1094450, 1563500, 2188900, 2736125, 3127000, 4377800, 5472250, 10944500, 21889000]

約数ペア:

[(1, 21889000), (2, 10944500), (4, 5472250), (5, 4377800), (7, 3127000), (8, 2736125), (10, 2188900), (14, 1563500), (20, 1094450), (25, 875560), (28, 781750), (35, 625400), (40, 547225), (50, 437780), (53, 413000), (56, 390875), (59, 371000), (70, 312700), (100, 218890), (106, 206500), (118, 185500), (125, 175112), (140, 156350), (175, 125080), (200, 109445), (212, 103250), (236, 92750), (250, 87556), (265, 82600), (280, 78175), (295, 74200), (350, 62540), (371, 59000), (413, 53000), (424, 51625), (472, 46375), (500, 43778), (530, 41300), (590, 37100), (700, 31270), (742, 29500), (826, 26500), (875, 25016), (1000, 21889), (1060, 20650), (1180, 18550), (1325, 16520), (1400, 15635), (1475, 14840), (1484, 14750), (1652, 13250), (1750, 12508), (1855, 11800), (2065, 10600), (2120, 10325), (2360, 9275), (2650, 8260), (2950, 7420), (2968, 7375), (3127, 7000), (3304, 6625), (3500, 6254), (3710, 5900), (4130, 5300)]