64941838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 109105920

約数和(自身を除く): 44164082

約数列:

[1, 2, 13, 26, 31, 62, 197, 394, 403, 409, 806, 818, 2561, 5122, 5317, 6107, 10634, 12214, 12679, 25358, 79391, 80573, 158782, 161146, 164827, 329654, 1047449, 2094898, 2497763, 4995526, 32470919, 64941838]

約数ペア:

[(1, 64941838), (2, 32470919), (13, 4995526), (26, 2497763), (31, 2094898), (62, 1047449), (197, 329654), (394, 164827), (403, 161146), (409, 158782), (806, 80573), (818, 79391), (2561, 25358), (5122, 12679), (5317, 12214), (6107, 10634)]