20406848

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 112

約数和(自身を含む): 52230528

約数和(自身を除く): 31823680

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 41, 44, 56, 64, 77, 82, 88, 101, 112, 154, 164, 176, 202, 224, 287, 308, 328, 352, 404, 448, 451, 574, 616, 656, 704, 707, 808, 902, 1111, 1148, 1232, 1312, 1414, 1616, 1804, 2222, 2296, 2464, 2624, 2828, 3157, 3232, 3608, 4141, 4444, 4592, 4928, 5656, 6314, 6464, 7216, 7777, 8282, 8888, 9184, 11312, 12628, 14432, 15554, 16564, 17776, 18368, 22624, 25256, 28864, 28987, 31108, 33128, 35552, 45248, 45551, 50512, 57974, 62216, 66256, 71104, 91102, 101024, 115948, 124432, 132512, 182204, 202048, 231896, 248864, 265024, 318857, 364408, 463792, 497728, 637714, 728816, 927584, 1275428, 1457632, 1855168, 2550856, 2915264, 5101712, 10203424, 20406848]

約数ペア:

[(1, 20406848), (2, 10203424), (4, 5101712), (7, 2915264), (8, 2550856), (11, 1855168), (14, 1457632), (16, 1275428), (22, 927584), (28, 728816), (32, 637714), (41, 497728), (44, 463792), (56, 364408), (64, 318857), (77, 265024), (82, 248864), (88, 231896), (101, 202048), (112, 182204), (154, 132512), (164, 124432), (176, 115948), (202, 101024), (224, 91102), (287, 71104), (308, 66256), (328, 62216), (352, 57974), (404, 50512), (448, 45551), (451, 45248), (574, 35552), (616, 33128), (656, 31108), (704, 28987), (707, 28864), (808, 25256), (902, 22624), (1111, 18368), (1148, 17776), (1232, 16564), (1312, 15554), (1414, 14432), (1616, 12628), (1804, 11312), (2222, 9184), (2296, 8888), (2464, 8282), (2624, 7777), (2828, 7216), (3157, 6464), (3232, 6314), (3608, 5656), (4141, 4928), (4444, 4592)]