20129848

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 38966400

約数和(自身を除く): 18836552

約数列:

[1, 2, 4, 8, 43, 86, 163, 172, 326, 344, 359, 652, 718, 1304, 1436, 2872, 7009, 14018, 15437, 28036, 30874, 56072, 58517, 61748, 117034, 123496, 234068, 468136, 2516231, 5032462, 10064924, 20129848]

約数ペア:

[(1, 20129848), (2, 10064924), (4, 5032462), (8, 2516231), (43, 468136), (86, 234068), (163, 123496), (172, 117034), (326, 61748), (344, 58517), (359, 56072), (652, 30874), (718, 28036), (1304, 15437), (1436, 14018), (2872, 7009)]