20453540156

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{71413}}^1$

素因数の和:71670

約数の個数: 48

約数和(自身を含む): 41895451584

約数和(自身を除く): 21441911428

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 193, 212, 371, 386, 742, 772, 1351, 1484, 2702, 5404, 10229, 20458, 40916, 71413, 71603, 142826, 143206, 285652, 286412, 499891, 999782, 1999564, 3784889, 7569778, 13782709, 15139556, 26494223, 27565418, 52988446, 55130836, 96478963, 105976892, 192957926, 385915852, 730483577, 1460967154, 2921934308, 5113385039, 10226770078, 20453540156]

約数ペア:

[(1, 20453540156), (2, 10226770078), (4, 5113385039), (7, 2921934308), (14, 1460967154), (28, 730483577), (53, 385915852), (106, 192957926), (193, 105976892), (212, 96478963), (371, 55130836), (386, 52988446), (742, 27565418), (772, 26494223), (1351, 15139556), (1484, 13782709), (2702, 7569778), (5404, 3784889), (10229, 1999564), (20458, 999782), (40916, 499891), (71413, 286412), (71603, 285652), (142826, 143206)]