31091620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{659}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 74954880

約数和(自身を除く): 43863260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 337, 659, 674, 1318, 1348, 1685, 2359, 2636, 3295, 3370, 4613, 4718, 6590, 6740, 9226, 9436, 11795, 13180, 18452, 23065, 23590, 46130, 47180, 92260, 222083, 444166, 888332, 1110415, 1554581, 2220830, 3109162, 4441660, 6218324, 7772905, 15545810, 31091620]

約数ペア:

[(1, 31091620), (2, 15545810), (4, 7772905), (5, 6218324), (7, 4441660), (10, 3109162), (14, 2220830), (20, 1554581), (28, 1110415), (35, 888332), (70, 444166), (140, 222083), (337, 92260), (659, 47180), (674, 46130), (1318, 23590), (1348, 23065), (1685, 18452), (2359, 13180), (2636, 11795), (3295, 9436), (3370, 9226), (4613, 6740), (4718, 6590)]