81043275

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 138991104

約数和(自身を除く): 57947829

約数列:

[1, 3, 5, 15, 25, 47, 75, 83, 141, 235, 249, 277, 415, 705, 831, 1175, 1245, 1385, 2075, 3525, 3901, 4155, 6225, 6925, 11703, 13019, 19505, 20775, 22991, 39057, 58515, 65095, 68973, 97525, 114955, 195285, 292575, 325475, 344865, 574775, 976425, 1080577, 1724325, 3241731, 5402885, 16208655, 27014425, 81043275]

約数ペア:

[(1, 81043275), (3, 27014425), (5, 16208655), (15, 5402885), (25, 3241731), (47, 1724325), (75, 1080577), (83, 976425), (141, 574775), (235, 344865), (249, 325475), (277, 292575), (415, 195285), (705, 114955), (831, 97525), (1175, 68973), (1245, 65095), (1385, 58515), (2075, 39057), (3525, 22991), (3901, 20775), (4155, 19505), (6225, 13019), (6925, 11703)]