85137320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51913}}^1$

素因数の和:51965

約数の個数: 32

約数和(自身を含む): 196234920

約数和(自身を除く): 111097600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 51913, 103826, 207652, 259565, 415304, 519130, 1038260, 2076520, 2128433, 4256866, 8513732, 10642165, 17027464, 21284330, 42568660, 85137320]

約数ペア:

[(1, 85137320), (2, 42568660), (4, 21284330), (5, 17027464), (8, 10642165), (10, 8513732), (20, 4256866), (40, 2128433), (41, 2076520), (82, 1038260), (164, 519130), (205, 415304), (328, 259565), (410, 207652), (820, 103826), (1640, 51913)]