199967666

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 323118720

約数和(自身を除く): 123151054

約数列:

[1, 2, 19, 38, 71, 137, 142, 274, 541, 1082, 1349, 2603, 2698, 5206, 9727, 10279, 19454, 20558, 38411, 74117, 76822, 148234, 184813, 369626, 729809, 1408223, 1459618, 2816446, 5262307, 10524614, 99983833, 199967666]

約数ペア:

[(1, 199967666), (2, 99983833), (19, 10524614), (38, 5262307), (71, 2816446), (137, 1459618), (142, 1408223), (274, 729809), (541, 369626), (1082, 184813), (1349, 148234), (2603, 76822), (2698, 74117), (5206, 38411), (9727, 20558), (10279, 19454)]