18003820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 21187220

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 107, 179, 188, 214, 235, 358, 428, 470, 535, 716, 895, 940, 1070, 1790, 2140, 3580, 5029, 8413, 10058, 16826, 19153, 20116, 25145, 33652, 38306, 42065, 50290, 76612, 84130, 95765, 100580, 168260, 191530, 383060, 900191, 1800382, 3600764, 4500955, 9001910, 18003820]

約数ペア:

[(1, 18003820), (2, 9001910), (4, 4500955), (5, 3600764), (10, 1800382), (20, 900191), (47, 383060), (94, 191530), (107, 168260), (179, 100580), (188, 95765), (214, 84130), (235, 76612), (358, 50290), (428, 42065), (470, 38306), (535, 33652), (716, 25145), (895, 20116), (940, 19153), (1070, 16826), (1790, 10058), (2140, 8413), (3580, 5029)]