698901985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{997}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 908259840

約数和(自身を除く): 209357855

約数列:

[1, 5, 19, 47, 95, 157, 235, 785, 893, 997, 2983, 4465, 4985, 7379, 14915, 18943, 36895, 46859, 94715, 140201, 156529, 234295, 701005, 782645, 890321, 2974051, 4451605, 7356863, 14870255, 36784315, 139780397, 698901985]

約数ペア:

[(1, 698901985), (5, 139780397), (19, 36784315), (47, 14870255), (95, 7356863), (157, 4451605), (235, 2974051), (785, 890321), (893, 782645), (997, 701005), (2983, 234295), (4465, 156529), (4985, 140201), (7379, 94715), (14915, 46859), (18943, 36895)]