91001920

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2609}}^1$

素因数の和:2735

約数の個数: 56

約数和(自身を含む): 218770200

約数和(自身を除く): 127768280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1744, 2180, 2609, 3488, 4360, 5218, 6976, 8720, 10436, 13045, 17440, 20872, 26090, 34880, 41744, 52180, 83488, 104360, 166976, 208720, 284381, 417440, 568762, 834880, 1137524, 1421905, 2275048, 2843810, 4550096, 5687620, 9100192, 11375240, 18200384, 22750480, 45500960, 91001920]

約数ペア:

[(1, 91001920), (2, 45500960), (4, 22750480), (5, 18200384), (8, 11375240), (10, 9100192), (16, 5687620), (20, 4550096), (32, 2843810), (40, 2275048), (64, 1421905), (80, 1137524), (109, 834880), (160, 568762), (218, 417440), (320, 284381), (436, 208720), (545, 166976), (872, 104360), (1090, 83488), (1744, 52180), (2180, 41744), (2609, 34880), (3488, 26090), (4360, 20872), (5218, 17440), (6976, 13045), (8720, 10436)]