80398130

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1249}}^1$

素因数の和:1454

約数の個数: 32

約数和(自身を含む): 149310000

約数和(自身を除く): 68911870

約数列:

[1, 2, 5, 10, 41, 82, 157, 205, 314, 410, 785, 1249, 1570, 2498, 6245, 6437, 12490, 12874, 32185, 51209, 64370, 102418, 196093, 256045, 392186, 512090, 980465, 1960930, 8039813, 16079626, 40199065, 80398130]

約数ペア:

[(1, 80398130), (2, 40199065), (5, 16079626), (10, 8039813), (41, 1960930), (82, 980465), (157, 512090), (205, 392186), (314, 256045), (410, 196093), (785, 102418), (1249, 64370), (1570, 51209), (2498, 32185), (6245, 12874), (6437, 12490)]