20960705

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 7343935

約数列:

[1, 5, 19, 23, 53, 95, 115, 181, 265, 437, 905, 1007, 1219, 2185, 3439, 4163, 5035, 6095, 9593, 17195, 20815, 23161, 47965, 79097, 115805, 182267, 220639, 395485, 911335, 1103195, 4192141, 20960705]

約数ペア:

[(1, 20960705), (5, 4192141), (19, 1103195), (23, 911335), (53, 395485), (95, 220639), (115, 182267), (181, 115805), (265, 79097), (437, 47965), (905, 23161), (1007, 20815), (1219, 17195), (2185, 9593), (3439, 6095), (4163, 5035)]