256940016

素因数分解:

$2^4\times 3^1\times {\mathrm{1607}}^1\times {\mathrm{3331}}^1$

素因数の和:4949

約数の個数: 40

約数和(自身を含む): 664374144

約数和(自身を除く): 407434128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1607, 3214, 3331, 4821, 6428, 6662, 9642, 9993, 12856, 13324, 19284, 19986, 25712, 26648, 38568, 39972, 53296, 77136, 79944, 159888, 5352917, 10705834, 16058751, 21411668, 32117502, 42823336, 64235004, 85646672, 128470008, 256940016]

約数ペア:

[(1, 256940016), (2, 128470008), (3, 85646672), (4, 64235004), (6, 42823336), (8, 32117502), (12, 21411668), (16, 16058751), (24, 10705834), (48, 5352917), (1607, 159888), (3214, 79944), (3331, 77136), (4821, 53296), (6428, 39972), (6662, 38568), (9642, 26648), (9993, 25712), (12856, 19986), (13324, 19284)]