79812580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 172440576

約数和(自身を除く): 92627996

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 197, 235, 394, 431, 470, 788, 862, 940, 985, 1724, 1970, 2155, 3940, 4310, 8620, 9259, 18518, 20257, 37036, 40514, 46295, 81028, 84907, 92590, 101285, 169814, 185180, 202570, 339628, 405140, 424535, 849070, 1698140, 3990629, 7981258, 15962516, 19953145, 39906290, 79812580]

約数ペア:

[(1, 79812580), (2, 39906290), (4, 19953145), (5, 15962516), (10, 7981258), (20, 3990629), (47, 1698140), (94, 849070), (188, 424535), (197, 405140), (235, 339628), (394, 202570), (431, 185180), (470, 169814), (788, 101285), (862, 92590), (940, 84907), (985, 81028), (1724, 46295), (1970, 40514), (2155, 37036), (3940, 20257), (4310, 18518), (8620, 9259)]