20180743480

素因数分解:

$2^3\times 5^1\times {\mathrm{12899}}^1\times {\mathrm{39113}}^1$

素因数の和:52023

約数の個数: 32

約数和(自身を含む): 45411354000

約数和(自身を除く): 25230610520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12899, 25798, 39113, 51596, 64495, 78226, 103192, 128990, 156452, 195565, 257980, 312904, 391130, 515960, 782260, 1564520, 504518587, 1009037174, 2018074348, 2522592935, 4036148696, 5045185870, 10090371740, 20180743480]

約数ペア:

[(1, 20180743480), (2, 10090371740), (4, 5045185870), (5, 4036148696), (8, 2522592935), (10, 2018074348), (20, 1009037174), (40, 504518587), (12899, 1564520), (25798, 782260), (39113, 515960), (51596, 391130), (64495, 312904), (78226, 257980), (103192, 195565), (128990, 156452)]