18780451768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2029003}}^1$

素因数の和:2029111

約数の個数: 32

約数和(自身を含む): 38348175600

約数和(自身を除く): 19567723832

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2314, 4628, 9256, 2029003, 4058006, 8116012, 16232024, 26377039, 52754078, 105508156, 180581267, 211016312, 361162534, 722325068, 1444650136, 2347556471, 4695112942, 9390225884, 18780451768]

約数ペア:

[(1, 18780451768), (2, 9390225884), (4, 4695112942), (8, 2347556471), (13, 1444650136), (26, 722325068), (52, 361162534), (89, 211016312), (104, 180581267), (178, 105508156), (356, 52754078), (712, 26377039), (1157, 16232024), (2314, 8116012), (4628, 4058006), (9256, 2029003)]