20980200800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{5351}}^1$

素因数の和:5426

約数の個数: 216

約数和(自身を含む): 57383983440

約数和(自身を除く): 36403782640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 32, 40, 50, 52, 58, 65, 80, 100, 104, 116, 130, 145, 160, 169, 200, 208, 232, 260, 290, 325, 338, 377, 400, 416, 464, 520, 580, 650, 676, 725, 754, 800, 845, 928, 1040, 1160, 1300, 1352, 1450, 1508, 1690, 1885, 2080, 2320, 2600, 2704, 2900, 3016, 3380, 3770, 4225, 4640, 4901, 5200, 5351, 5408, 5800, 6032, 6760, 7540, 8450, 9425, 9802, 10400, 10702, 11600, 12064, 13520, 15080, 16900, 18850, 19604, 21404, 23200, 24505, 26755, 27040, 30160, 33800, 37700, 39208, 42808, 49010, 53510, 60320, 67600, 69563, 75400, 78416, 85616, 98020, 107020, 122525, 133775, 135200, 139126, 150800, 155179, 156832, 171232, 196040, 214040, 245050, 267550, 278252, 301600, 310358, 347815, 392080, 428080, 490100, 535100, 556504, 620716, 695630, 775895, 784160, 856160, 904319, 980200, 1070200, 1113008, 1241432, 1391260, 1551790, 1739075, 1808638, 1960400, 2017327, 2140400, 2226016, 2482864, 2782520, 3103580, 3478150, 3617276, 3879475, 3920800, 4034654, 4280800, 4521595, 4965728, 5565040, 6207160, 6956300, 7234552, 7758950, 8069308, 9043190, 10086635, 11130080, 12414320, 13912600, 14469104, 15517900, 16138616, 18086380, 20173270, 22607975, 24828640, 26225251, 27825200, 28938208, 31035800, 32277232, 36172760, 40346540, 45215950, 50433175, 52450502, 55650400, 62071600, 64554464, 72345520, 80693080, 90431900, 100866350, 104901004, 124143200, 131126255, 144691040, 161386160, 180863800, 201732700, 209802008, 262252510, 322772320, 361727600, 403465400, 419604016, 524505020, 655631275, 723455200, 806930800, 839208032, 1049010040, 1311262550, 1613861600, 2098020080, 2622525100, 4196040160, 5245050200, 10490100400, 20980200800]

約数ペア:

[(1, 20980200800), (2, 10490100400), (4, 5245050200), (5, 4196040160), (8, 2622525100), (10, 2098020080), (13, 1613861600), (16, 1311262550), (20, 1049010040), (25, 839208032), (26, 806930800), (29, 723455200), (32, 655631275), (40, 524505020), (50, 419604016), (52, 403465400), (58, 361727600), (65, 322772320), (80, 262252510), (100, 209802008), (104, 201732700), (116, 180863800), (130, 161386160), (145, 144691040), (160, 131126255), (169, 124143200), (200, 104901004), (208, 100866350), (232, 90431900), (260, 80693080), (290, 72345520), (325, 64554464), (338, 62071600), (377, 55650400), (400, 52450502), (416, 50433175), (464, 45215950), (520, 40346540), (580, 36172760), (650, 32277232), (676, 31035800), (725, 28938208), (754, 27825200), (800, 26225251), (845, 24828640), (928, 22607975), (1040, 20173270), (1160, 18086380), (1300, 16138616), (1352, 15517900), (1450, 14469104), (1508, 13912600), (1690, 12414320), (1885, 11130080), (2080, 10086635), (2320, 9043190), (2600, 8069308), (2704, 7758950), (2900, 7234552), (3016, 6956300), (3380, 6207160), (3770, 5565040), (4225, 4965728), (4640, 4521595), (4901, 4280800), (5200, 4034654), (5351, 3920800), (5408, 3879475), (5800, 3617276), (6032, 3478150), (6760, 3103580), (7540, 2782520), (8450, 2482864), (9425, 2226016), (9802, 2140400), (10400, 2017327), (10702, 1960400), (11600, 1808638), (12064, 1739075), (13520, 1551790), (15080, 1391260), (16900, 1241432), (18850, 1113008), (19604, 1070200), (21404, 980200), (23200, 904319), (24505, 856160), (26755, 784160), (27040, 775895), (30160, 695630), (33800, 620716), (37700, 556504), (39208, 535100), (42808, 490100), (49010, 428080), (53510, 392080), (60320, 347815), (67600, 310358), (69563, 301600), (75400, 278252), (78416, 267550), (85616, 245050), (98020, 214040), (107020, 196040), (122525, 171232), (133775, 156832), (135200, 155179), (139126, 150800)]