304889000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 128

約数和(自身を含む): 786240000

約数和(自身を除く): 481351000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 47, 50, 52, 65, 94, 100, 104, 125, 130, 188, 200, 235, 250, 260, 325, 376, 470, 499, 500, 520, 611, 650, 940, 998, 1000, 1175, 1222, 1300, 1625, 1880, 1996, 2350, 2444, 2495, 2600, 3055, 3250, 3992, 4700, 4888, 4990, 5875, 6110, 6487, 6500, 9400, 9980, 11750, 12220, 12475, 12974, 13000, 15275, 19960, 23453, 23500, 24440, 24950, 25948, 30550, 32435, 46906, 47000, 49900, 51896, 61100, 62375, 64870, 76375, 93812, 99800, 117265, 122200, 124750, 129740, 152750, 162175, 187624, 234530, 249500, 259480, 304889, 305500, 324350, 469060, 499000, 586325, 609778, 611000, 648700, 810875, 938120, 1172650, 1219556, 1297400, 1524445, 1621750, 2345300, 2439112, 2931625, 3048890, 3243500, 4690600, 5863250, 6097780, 6487000, 7622225, 11726500, 12195560, 15244450, 23453000, 30488900, 38111125, 60977800, 76222250, 152444500, 304889000]

約数ペア:

[(1, 304889000), (2, 152444500), (4, 76222250), (5, 60977800), (8, 38111125), (10, 30488900), (13, 23453000), (20, 15244450), (25, 12195560), (26, 11726500), (40, 7622225), (47, 6487000), (50, 6097780), (52, 5863250), (65, 4690600), (94, 3243500), (100, 3048890), (104, 2931625), (125, 2439112), (130, 2345300), (188, 1621750), (200, 1524445), (235, 1297400), (250, 1219556), (260, 1172650), (325, 938120), (376, 810875), (470, 648700), (499, 611000), (500, 609778), (520, 586325), (611, 499000), (650, 469060), (940, 324350), (998, 305500), (1000, 304889), (1175, 259480), (1222, 249500), (1300, 234530), (1625, 187624), (1880, 162175), (1996, 152750), (2350, 129740), (2444, 124750), (2495, 122200), (2600, 117265), (3055, 99800), (3250, 93812), (3992, 76375), (4700, 64870), (4888, 62375), (4990, 61100), (5875, 51896), (6110, 49900), (6487, 47000), (6500, 46906), (9400, 32435), (9980, 30550), (11750, 25948), (12220, 24950), (12475, 24440), (12974, 23500), (13000, 23453), (15275, 19960)]