1640981584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{59387}}^1$

素因数の和:59563

約数の個数: 40

約数和(自身を含む): 3490589088

約数和(自身を除く): 1849607504

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 157, 176, 314, 628, 1256, 1727, 2512, 3454, 6908, 13816, 27632, 59387, 118774, 237548, 475096, 653257, 950192, 1306514, 2613028, 5226056, 9323759, 10452112, 18647518, 37295036, 74590072, 102561349, 149180144, 205122698, 410245396, 820490792, 1640981584]

約数ペア:

[(1, 1640981584), (2, 820490792), (4, 410245396), (8, 205122698), (11, 149180144), (16, 102561349), (22, 74590072), (44, 37295036), (88, 18647518), (157, 10452112), (176, 9323759), (314, 5226056), (628, 2613028), (1256, 1306514), (1727, 950192), (2512, 653257), (3454, 475096), (6908, 237548), (13816, 118774), (27632, 59387)]