2018990870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{43261}}^1$

素因数の和:43640

約数の個数: 32

約数和(自身を含む): 3924728640

約数和(自身を除く): 1905737770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 359, 718, 1795, 3590, 4667, 9334, 23335, 43261, 46670, 86522, 216305, 432610, 562393, 1124786, 2811965, 5623930, 15530699, 31061398, 77653495, 155306990, 201899087, 403798174, 1009495435, 2018990870]

約数ペア:

[(1, 2018990870), (2, 1009495435), (5, 403798174), (10, 201899087), (13, 155306990), (26, 77653495), (65, 31061398), (130, 15530699), (359, 5623930), (718, 2811965), (1795, 1124786), (3590, 562393), (4667, 432610), (9334, 216305), (23335, 86522), (43261, 46670)]