20180990018

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1487}}^1\times {\mathrm{31271}}^1$

素因数の和:32798

約数の個数: 32

約数和(自身を含む): 35737141248

約数和(自身を除く): 15556151230

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 1487, 2974, 10409, 20818, 31271, 46097, 62542, 92194, 218897, 322679, 437794, 645358, 969401, 1938802, 6785807, 13571614, 46499977, 92999954, 325499839, 650999678, 1441499287, 2882998574, 10090495009, 20180990018]

約数ペア:

[(1, 20180990018), (2, 10090495009), (7, 2882998574), (14, 1441499287), (31, 650999678), (62, 325499839), (217, 92999954), (434, 46499977), (1487, 13571614), (2974, 6785807), (10409, 1938802), (20818, 969401), (31271, 645358), (46097, 437794), (62542, 322679), (92194, 218897)]