86439470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 175633920

約数和(自身を除く): 89194450

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 89, 130, 155, 178, 241, 310, 403, 445, 482, 806, 890, 1157, 1205, 2015, 2314, 2410, 2759, 3133, 4030, 5518, 5785, 6266, 7471, 11570, 13795, 14942, 15665, 21449, 27590, 31330, 35867, 37355, 42898, 71734, 74710, 97123, 107245, 179335, 194246, 214490, 278837, 358670, 485615, 557674, 664919, 971230, 1329838, 1394185, 2788370, 3324595, 6649190, 8643947, 17287894, 43219735, 86439470]

約数ペア:

[(1, 86439470), (2, 43219735), (5, 17287894), (10, 8643947), (13, 6649190), (26, 3324595), (31, 2788370), (62, 1394185), (65, 1329838), (89, 971230), (130, 664919), (155, 557674), (178, 485615), (241, 358670), (310, 278837), (403, 214490), (445, 194246), (482, 179335), (806, 107245), (890, 97123), (1157, 74710), (1205, 71734), (2015, 42898), (2314, 37355), (2410, 35867), (2759, 31330), (3133, 27590), (4030, 21449), (5518, 15665), (5785, 14942), (6266, 13795), (7471, 11570)]