20263405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12547}}^1$

素因数の和:12588

約数の個数: 16

約数和(自身を含む): 27103680

約数和(自身を除く): 6840275

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 12547, 62735, 213299, 238393, 1066495, 1191965, 4052681, 20263405]

約数ペア:

[(1, 20263405), (5, 4052681), (17, 1191965), (19, 1066495), (85, 238393), (95, 213299), (323, 62735), (1615, 12547)]