82899790

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 151800480

約数和(自身を除く): 68900690

約数列:

[1, 2, 5, 10, 101, 202, 211, 389, 422, 505, 778, 1010, 1055, 1945, 2110, 3890, 21311, 39289, 42622, 78578, 82079, 106555, 164158, 196445, 213110, 392890, 410395, 820790, 8289979, 16579958, 41449895, 82899790]

約数ペア:

[(1, 82899790), (2, 41449895), (5, 16579958), (10, 8289979), (101, 820790), (202, 410395), (211, 392890), (389, 213110), (422, 196445), (505, 164158), (778, 106555), (1010, 82079), (1055, 78578), (1945, 42622), (2110, 39289), (3890, 21311)]