90405205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 123959808

約数和(自身を除く): 33554603

約数列:

[1, 5, 11, 41, 47, 55, 205, 235, 451, 517, 853, 1927, 2255, 2585, 4265, 9383, 9635, 21197, 34973, 40091, 46915, 105985, 174865, 200455, 384703, 441001, 1643731, 1923515, 2205005, 8218655, 18081041, 90405205]

約数ペア:

[(1, 90405205), (5, 18081041), (11, 8218655), (41, 2205005), (47, 1923515), (55, 1643731), (205, 441001), (235, 384703), (451, 200455), (517, 174865), (853, 105985), (1927, 46915), (2255, 40091), (2585, 34973), (4265, 21197), (9383, 9635)]