21345468800

素因数分解:

$2^7\times 5^2\times {\mathrm{157}}^1\times {\mathrm{42487}}^1$

素因数の和:42668

約数の個数: 96

約数和(自身を含む): 53067087120

約数和(自身を除く): 31721618320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 157, 160, 200, 314, 320, 400, 628, 640, 785, 800, 1256, 1570, 1600, 2512, 3140, 3200, 3925, 5024, 6280, 7850, 10048, 12560, 15700, 20096, 25120, 31400, 42487, 50240, 62800, 84974, 100480, 125600, 169948, 212435, 251200, 339896, 424870, 502400, 679792, 849740, 1062175, 1359584, 1699480, 2124350, 2719168, 3398960, 4248700, 5438336, 6670459, 6797920, 8497400, 13340918, 13595840, 16994800, 26681836, 27191680, 33352295, 33989600, 53363672, 66704590, 67979200, 106727344, 133409180, 135958400, 166761475, 213454688, 266818360, 333522950, 426909376, 533636720, 667045900, 853818752, 1067273440, 1334091800, 2134546880, 2668183600, 4269093760, 5336367200, 10672734400, 21345468800]

約数ペア:

[(1, 21345468800), (2, 10672734400), (4, 5336367200), (5, 4269093760), (8, 2668183600), (10, 2134546880), (16, 1334091800), (20, 1067273440), (25, 853818752), (32, 667045900), (40, 533636720), (50, 426909376), (64, 333522950), (80, 266818360), (100, 213454688), (128, 166761475), (157, 135958400), (160, 133409180), (200, 106727344), (314, 67979200), (320, 66704590), (400, 53363672), (628, 33989600), (640, 33352295), (785, 27191680), (800, 26681836), (1256, 16994800), (1570, 13595840), (1600, 13340918), (2512, 8497400), (3140, 6797920), (3200, 6670459), (3925, 5438336), (5024, 4248700), (6280, 3398960), (7850, 2719168), (10048, 2124350), (12560, 1699480), (15700, 1359584), (20096, 1062175), (25120, 849740), (31400, 679792), (42487, 502400), (50240, 424870), (62800, 339896), (84974, 251200), (100480, 212435), (125600, 169948)]