18932420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72817}}^1$

素因数の和:72839

約数の個数: 24

約数和(自身を含む): 42816984

約数和(自身を除く): 23884564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72817, 145634, 291268, 364085, 728170, 946621, 1456340, 1893242, 3786484, 4733105, 9466210, 18932420]

約数ペア:

[(1, 18932420), (2, 9466210), (4, 4733105), (5, 3786484), (10, 1893242), (13, 1456340), (20, 946621), (26, 728170), (52, 364085), (65, 291268), (130, 145634), (260, 72817)]