20100640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 55085184

約数和(自身を除く): 34984544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 131, 137, 140, 160, 224, 262, 274, 280, 524, 548, 560, 655, 685, 917, 959, 1048, 1096, 1120, 1310, 1370, 1834, 1918, 2096, 2192, 2620, 2740, 3668, 3836, 4192, 4384, 4585, 4795, 5240, 5480, 7336, 7672, 9170, 9590, 10480, 10960, 14672, 15344, 17947, 18340, 19180, 20960, 21920, 29344, 30688, 35894, 36680, 38360, 71788, 73360, 76720, 89735, 125629, 143576, 146720, 153440, 179470, 251258, 287152, 358940, 502516, 574304, 628145, 717880, 1005032, 1256290, 1435760, 2010064, 2512580, 2871520, 4020128, 5025160, 10050320, 20100640]

約数ペア:

[(1, 20100640), (2, 10050320), (4, 5025160), (5, 4020128), (7, 2871520), (8, 2512580), (10, 2010064), (14, 1435760), (16, 1256290), (20, 1005032), (28, 717880), (32, 628145), (35, 574304), (40, 502516), (56, 358940), (70, 287152), (80, 251258), (112, 179470), (131, 153440), (137, 146720), (140, 143576), (160, 125629), (224, 89735), (262, 76720), (274, 73360), (280, 71788), (524, 38360), (548, 36680), (560, 35894), (655, 30688), (685, 29344), (917, 21920), (959, 20960), (1048, 19180), (1096, 18340), (1120, 17947), (1310, 15344), (1370, 14672), (1834, 10960), (1918, 10480), (2096, 9590), (2192, 9170), (2620, 7672), (2740, 7336), (3668, 5480), (3836, 5240), (4192, 4795), (4384, 4585)]