18502880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10513}}^1$

素因数の和:10539

約数の個数: 48

約数和(自身を含む): 47691504

約数和(自身を除く): 29188624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 10513, 21026, 42052, 52565, 84104, 105130, 115643, 168208, 210260, 231286, 336416, 420520, 462572, 578215, 841040, 925144, 1156430, 1682080, 1850288, 2312860, 3700576, 4625720, 9251440, 18502880]

約数ペア:

[(1, 18502880), (2, 9251440), (4, 4625720), (5, 3700576), (8, 2312860), (10, 1850288), (11, 1682080), (16, 1156430), (20, 925144), (22, 841040), (32, 578215), (40, 462572), (44, 420520), (55, 336416), (80, 231286), (88, 210260), (110, 168208), (160, 115643), (176, 105130), (220, 84104), (352, 52565), (440, 42052), (880, 21026), (1760, 10513)]