18886010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 40932864

約数和(自身を除く): 22046854

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 47, 55, 65, 94, 110, 130, 143, 235, 281, 286, 470, 517, 562, 611, 715, 1034, 1222, 1405, 1430, 2585, 2810, 3055, 3091, 3653, 5170, 6110, 6182, 6721, 7306, 13207, 13442, 15455, 18265, 26414, 30910, 33605, 36530, 40183, 66035, 67210, 80366, 132070, 145277, 171691, 200915, 290554, 343382, 401830, 726385, 858455, 1452770, 1716910, 1888601, 3777202, 9443005, 18886010]

約数ペア:

[(1, 18886010), (2, 9443005), (5, 3777202), (10, 1888601), (11, 1716910), (13, 1452770), (22, 858455), (26, 726385), (47, 401830), (55, 343382), (65, 290554), (94, 200915), (110, 171691), (130, 145277), (143, 132070), (235, 80366), (281, 67210), (286, 66035), (470, 40183), (517, 36530), (562, 33605), (611, 30910), (715, 26414), (1034, 18265), (1222, 15455), (1405, 13442), (1430, 13207), (2585, 7306), (2810, 6721), (3055, 6182), (3091, 6110), (3653, 5170)]