19800704

素因数分解:

$2^7\times 7^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1$

素因数の和:87

約数の個数: 128

約数和(自身を含む): 51408000

約数和(自身を除く): 31607296

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 41, 44, 49, 56, 64, 77, 82, 88, 98, 112, 128, 154, 164, 176, 196, 224, 287, 308, 328, 343, 352, 392, 448, 451, 539, 574, 616, 656, 686, 704, 784, 896, 902, 1078, 1148, 1232, 1312, 1372, 1408, 1568, 1804, 2009, 2156, 2296, 2464, 2624, 2744, 3136, 3157, 3608, 3773, 4018, 4312, 4592, 4928, 5248, 5488, 6272, 6314, 7216, 7546, 8036, 8624, 9184, 9856, 10976, 12628, 14063, 14432, 15092, 16072, 17248, 18368, 21952, 22099, 25256, 28126, 28864, 30184, 32144, 34496, 36736, 43904, 44198, 50512, 56252, 57728, 60368, 64288, 68992, 88396, 101024, 112504, 120736, 128576, 154693, 176792, 202048, 225008, 241472, 257152, 309386, 353584, 404096, 450016, 482944, 618772, 707168, 900032, 1237544, 1414336, 1800064, 2475088, 2828672, 4950176, 9900352, 19800704]

約数ペア:

[(1, 19800704), (2, 9900352), (4, 4950176), (7, 2828672), (8, 2475088), (11, 1800064), (14, 1414336), (16, 1237544), (22, 900032), (28, 707168), (32, 618772), (41, 482944), (44, 450016), (49, 404096), (56, 353584), (64, 309386), (77, 257152), (82, 241472), (88, 225008), (98, 202048), (112, 176792), (128, 154693), (154, 128576), (164, 120736), (176, 112504), (196, 101024), (224, 88396), (287, 68992), (308, 64288), (328, 60368), (343, 57728), (352, 56252), (392, 50512), (448, 44198), (451, 43904), (539, 36736), (574, 34496), (616, 32144), (656, 30184), (686, 28864), (704, 28126), (784, 25256), (896, 22099), (902, 21952), (1078, 18368), (1148, 17248), (1232, 16072), (1312, 15092), (1372, 14432), (1408, 14063), (1568, 12628), (1804, 10976), (2009, 9856), (2156, 9184), (2296, 8624), (2464, 8036), (2624, 7546), (2744, 7216), (3136, 6314), (3157, 6272), (3608, 5488), (3773, 5248), (4018, 4928), (4312, 4592)]