20389052

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 40803840

約数和(自身を除く): 20414788

約数列:

[1, 2, 4, 17, 19, 34, 38, 43, 68, 76, 86, 172, 323, 367, 646, 731, 734, 817, 1292, 1462, 1468, 1634, 2924, 3268, 6239, 6973, 12478, 13889, 13946, 15781, 24956, 27778, 27892, 31562, 55556, 63124, 118541, 237082, 268277, 299839, 474164, 536554, 599678, 1073108, 1199356, 5097263, 10194526, 20389052]

約数ペア:

[(1, 20389052), (2, 10194526), (4, 5097263), (17, 1199356), (19, 1073108), (34, 599678), (38, 536554), (43, 474164), (68, 299839), (76, 268277), (86, 237082), (172, 118541), (323, 63124), (367, 55556), (646, 31562), (731, 27892), (734, 27778), (817, 24956), (1292, 15781), (1462, 13946), (1468, 13889), (1634, 12478), (2924, 6973), (3268, 6239)]