31242820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{5443}}^1$

素因数の和:5500

約数の個数: 48

約数和(自身を含む): 76825728

約数和(自身を除く): 45582908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5443, 5740, 10886, 21772, 27215, 38101, 54430, 76202, 108860, 152404, 190505, 223163, 381010, 446326, 762020, 892652, 1115815, 1562141, 2231630, 3124282, 4463260, 6248564, 7810705, 15621410, 31242820]

約数ペア:

[(1, 31242820), (2, 15621410), (4, 7810705), (5, 6248564), (7, 4463260), (10, 3124282), (14, 2231630), (20, 1562141), (28, 1115815), (35, 892652), (41, 762020), (70, 446326), (82, 381010), (140, 223163), (164, 190505), (205, 152404), (287, 108860), (410, 76202), (574, 54430), (820, 38101), (1148, 27215), (1435, 21772), (2870, 10886), (5443, 5740)]