20122173904

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{20479}}^1$

素因数の和:20808

約数の個数: 80

約数和(自身を含む): 46158315520

約数和(自身を除く): 26036141616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 283, 434, 496, 566, 868, 1132, 1736, 1981, 2264, 3472, 3962, 4528, 7924, 8773, 15848, 17546, 20479, 31696, 35092, 40958, 61411, 70184, 81916, 122822, 140368, 143353, 163832, 245644, 286706, 327664, 491288, 573412, 634849, 982576, 1146824, 1269698, 2293648, 2539396, 4443943, 5078792, 5795557, 8887886, 10157584, 11591114, 17775772, 23182228, 35551544, 40568899, 46364456, 71103088, 81137798, 92728912, 162275596, 179662267, 324551192, 359324534, 649102384, 718649068, 1257635869, 1437298136, 2515271738, 2874596272, 5030543476, 10061086952, 20122173904]

約数ペア:

[(1, 20122173904), (2, 10061086952), (4, 5030543476), (7, 2874596272), (8, 2515271738), (14, 1437298136), (16, 1257635869), (28, 718649068), (31, 649102384), (56, 359324534), (62, 324551192), (112, 179662267), (124, 162275596), (217, 92728912), (248, 81137798), (283, 71103088), (434, 46364456), (496, 40568899), (566, 35551544), (868, 23182228), (1132, 17775772), (1736, 11591114), (1981, 10157584), (2264, 8887886), (3472, 5795557), (3962, 5078792), (4528, 4443943), (7924, 2539396), (8773, 2293648), (15848, 1269698), (17546, 1146824), (20479, 982576), (31696, 634849), (35092, 573412), (40958, 491288), (61411, 327664), (70184, 286706), (81916, 245644), (122822, 163832), (140368, 143353)]