20880456478

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{139663}}^1$

素因数の和:139912

約数の個数: 32

約数和(自身を含む): 36603141120

約数和(自身を除く): 15722684642

約数列:

[1, 2, 7, 14, 59, 118, 181, 362, 413, 826, 1267, 2534, 10679, 21358, 74753, 139663, 149506, 279326, 977641, 1955282, 8240117, 16480234, 25279003, 50558006, 57680819, 115361638, 176953021, 353906042, 1491461177, 2982922354, 10440228239, 20880456478]

約数ペア:

[(1, 20880456478), (2, 10440228239), (7, 2982922354), (14, 1491461177), (59, 353906042), (118, 176953021), (181, 115361638), (362, 57680819), (413, 50558006), (826, 25279003), (1267, 16480234), (2534, 8240117), (10679, 1955282), (21358, 977641), (74753, 279326), (139663, 149506)]