90981320

素因数分解:

$2^3\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{2081}}^1$

素因数の和:3185

約数の個数: 32

約数和(自身を含む): 204993720

約数和(自身を除く): 114012400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1093, 2081, 2186, 4162, 4372, 5465, 8324, 8744, 10405, 10930, 16648, 20810, 21860, 41620, 43720, 83240, 2274533, 4549066, 9098132, 11372665, 18196264, 22745330, 45490660, 90981320]

約数ペア:

[(1, 90981320), (2, 45490660), (4, 22745330), (5, 18196264), (8, 11372665), (10, 9098132), (20, 4549066), (40, 2274533), (1093, 83240), (2081, 43720), (2186, 41620), (4162, 21860), (4372, 20810), (5465, 16648), (8324, 10930), (8744, 10405)]