2005163965

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{12583}}^1$

素因数の和:12781

約数の個数: 32

約数和(自身を含む): 2863111680

約数和(自身を除く): 857947715

約数列:

[1, 5, 7, 29, 35, 145, 157, 203, 785, 1015, 1099, 4553, 5495, 12583, 22765, 31871, 62915, 88081, 159355, 364907, 440405, 1824535, 1975531, 2554349, 9877655, 12771745, 13828717, 57290399, 69143585, 286451995, 401032793, 2005163965]

約数ペア:

[(1, 2005163965), (5, 401032793), (7, 286451995), (29, 69143585), (35, 57290399), (145, 13828717), (157, 12771745), (203, 9877655), (785, 2554349), (1015, 1975531), (1099, 1824535), (4553, 440405), (5495, 364907), (12583, 159355), (22765, 88081), (31871, 62915)]