8137720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1553}}^1$

素因数の和:1695

約数の個数: 32

約数和(自身を含む): 18461520

約数和(自身を除く): 10323800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 1553, 2620, 3106, 5240, 6212, 7765, 12424, 15530, 31060, 62120, 203443, 406886, 813772, 1017215, 1627544, 2034430, 4068860, 8137720]

約数ペア:

[(1, 8137720), (2, 4068860), (4, 2034430), (5, 1627544), (8, 1017215), (10, 813772), (20, 406886), (40, 203443), (131, 62120), (262, 31060), (524, 15530), (655, 12424), (1048, 7765), (1310, 6212), (1553, 5240), (2620, 3106)]