20305288

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 39584160

約数和(自身を除く): 19278872

約数列:

[1, 2, 4, 8, 43, 67, 86, 134, 172, 268, 344, 536, 881, 1762, 2881, 3524, 5762, 7048, 11524, 23048, 37883, 59027, 75766, 118054, 151532, 236108, 303064, 472216, 2538161, 5076322, 10152644, 20305288]

約数ペア:

[(1, 20305288), (2, 10152644), (4, 5076322), (8, 2538161), (43, 472216), (67, 303064), (86, 236108), (134, 151532), (172, 118054), (268, 75766), (344, 59027), (536, 37883), (881, 23048), (1762, 11524), (2881, 7048), (3524, 5762)]