2019977128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{21557}}^1$

素因数の和:21646

約数の個数: 64

約数和(自身を含む): 4400418960

約数和(自身を除く): 2380441832

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 53, 68, 104, 106, 136, 212, 221, 424, 442, 689, 884, 901, 1378, 1768, 1802, 2756, 3604, 5512, 7208, 11713, 21557, 23426, 43114, 46852, 86228, 93704, 172456, 280241, 366469, 560482, 732938, 1120964, 1142521, 1465876, 2241928, 2285042, 2931752, 4570084, 4764097, 9140168, 9528194, 14852773, 19056388, 19422857, 29705546, 38112776, 38845714, 59411092, 77691428, 118822184, 155382856, 252497141, 504994282, 1009988564, 2019977128]

約数ペア:

[(1, 2019977128), (2, 1009988564), (4, 504994282), (8, 252497141), (13, 155382856), (17, 118822184), (26, 77691428), (34, 59411092), (52, 38845714), (53, 38112776), (68, 29705546), (104, 19422857), (106, 19056388), (136, 14852773), (212, 9528194), (221, 9140168), (424, 4764097), (442, 4570084), (689, 2931752), (884, 2285042), (901, 2241928), (1378, 1465876), (1768, 1142521), (1802, 1120964), (2756, 732938), (3604, 560482), (5512, 366469), (7208, 280241), (11713, 172456), (21557, 93704), (23426, 86228), (43114, 46852)]