20990958400

素因数分解:

$2^6\times 5^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{3253}}^1$

素因数の和:3421

約数の個数: 168

約数和(自身を含む): 53549971640

約数和(自身を除く): 32559013240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 64, 74, 80, 100, 109, 148, 160, 185, 200, 218, 296, 320, 370, 400, 436, 545, 592, 740, 800, 872, 925, 1090, 1184, 1480, 1600, 1744, 1850, 2180, 2368, 2725, 2960, 3253, 3488, 3700, 4033, 4360, 5450, 5920, 6506, 6976, 7400, 8066, 8720, 10900, 11840, 13012, 14800, 16132, 16265, 17440, 20165, 21800, 26024, 29600, 32264, 32530, 34880, 40330, 43600, 52048, 59200, 64528, 65060, 80660, 81325, 87200, 100825, 104096, 120361, 129056, 130120, 161320, 162650, 174400, 201650, 208192, 240722, 258112, 260240, 322640, 325300, 354577, 403300, 481444, 520480, 601805, 645280, 650600, 709154, 806600, 962888, 1040960, 1203610, 1290560, 1301200, 1418308, 1613200, 1772885, 1925776, 2407220, 2602400, 2836616, 3009025, 3226400, 3545770, 3851552, 4814440, 5204800, 5673232, 6018050, 6452800, 7091540, 7703104, 8864425, 9628880, 11346464, 12036100, 13119349, 14183080, 17728850, 19257760, 22692928, 24072200, 26238698, 28366160, 35457700, 38515520, 48144400, 52477396, 56732320, 65596745, 70915400, 96288800, 104954792, 113464640, 131193490, 141830800, 192577600, 209909584, 262386980, 283661600, 327983725, 419819168, 524773960, 567323200, 655967450, 839638336, 1049547920, 1311934900, 2099095840, 2623869800, 4198191680, 5247739600, 10495479200, 20990958400]

約数ペア:

[(1, 20990958400), (2, 10495479200), (4, 5247739600), (5, 4198191680), (8, 2623869800), (10, 2099095840), (16, 1311934900), (20, 1049547920), (25, 839638336), (32, 655967450), (37, 567323200), (40, 524773960), (50, 419819168), (64, 327983725), (74, 283661600), (80, 262386980), (100, 209909584), (109, 192577600), (148, 141830800), (160, 131193490), (185, 113464640), (200, 104954792), (218, 96288800), (296, 70915400), (320, 65596745), (370, 56732320), (400, 52477396), (436, 48144400), (545, 38515520), (592, 35457700), (740, 28366160), (800, 26238698), (872, 24072200), (925, 22692928), (1090, 19257760), (1184, 17728850), (1480, 14183080), (1600, 13119349), (1744, 12036100), (1850, 11346464), (2180, 9628880), (2368, 8864425), (2725, 7703104), (2960, 7091540), (3253, 6452800), (3488, 6018050), (3700, 5673232), (4033, 5204800), (4360, 4814440), (5450, 3851552), (5920, 3545770), (6506, 3226400), (6976, 3009025), (7400, 2836616), (8066, 2602400), (8720, 2407220), (10900, 1925776), (11840, 1772885), (13012, 1613200), (14800, 1418308), (16132, 1301200), (16265, 1290560), (17440, 1203610), (20165, 1040960), (21800, 962888), (26024, 806600), (29600, 709154), (32264, 650600), (32530, 645280), (34880, 601805), (40330, 520480), (43600, 481444), (52048, 403300), (59200, 354577), (64528, 325300), (65060, 322640), (80660, 260240), (81325, 258112), (87200, 240722), (100825, 208192), (104096, 201650), (120361, 174400), (129056, 162650), (130120, 161320)]