7976140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 17527104

約数和(自身を除く): 9550964

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 137, 142, 164, 205, 274, 284, 355, 410, 548, 685, 710, 820, 1370, 1420, 2740, 2911, 5617, 5822, 9727, 11234, 11644, 14555, 19454, 22468, 28085, 29110, 38908, 48635, 56170, 58220, 97270, 112340, 194540, 398807, 797614, 1595228, 1994035, 3988070, 7976140]

約数ペア:

[(1, 7976140), (2, 3988070), (4, 1994035), (5, 1595228), (10, 797614), (20, 398807), (41, 194540), (71, 112340), (82, 97270), (137, 58220), (142, 56170), (164, 48635), (205, 38908), (274, 29110), (284, 28085), (355, 22468), (410, 19454), (548, 14555), (685, 11644), (710, 11234), (820, 9727), (1370, 5822), (1420, 5617), (2740, 2911)]