31201810

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 58351104

約数和(自身を除く): 27149294

約数列:

[1, 2, 5, 10, 31, 62, 155, 251, 310, 401, 502, 802, 1255, 2005, 2510, 4010, 7781, 12431, 15562, 24862, 38905, 62155, 77810, 100651, 124310, 201302, 503255, 1006510, 3120181, 6240362, 15600905, 31201810]

約数ペア:

[(1, 31201810), (2, 15600905), (5, 6240362), (10, 3120181), (31, 1006510), (62, 503255), (155, 201302), (251, 124310), (310, 100651), (401, 77810), (502, 62155), (802, 38905), (1255, 24862), (2005, 15562), (2510, 12431), (4010, 7781)]