20064751505

素因数分解:

$5^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1\times {\mathrm{821}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 24537212928

約数和(自身を除く): 4472461423

約数列:

[1, 5, 157, 163, 191, 785, 815, 821, 955, 4105, 25591, 29987, 31133, 127955, 128897, 133823, 149935, 155665, 156811, 644485, 669115, 784055, 4887881, 21010211, 24439405, 24619327, 25560193, 105051055, 123096635, 127800965, 4012950301, 20064751505]

約数ペア:

[(1, 20064751505), (5, 4012950301), (157, 127800965), (163, 123096635), (191, 105051055), (785, 25560193), (815, 24619327), (821, 24439405), (955, 21010211), (4105, 4887881), (25591, 784055), (29987, 669115), (31133, 644485), (127955, 156811), (128897, 155665), (133823, 149935)]