18764840

素因数分解:

$2^3\times 5^1\times {\mathrm{469121}}^1$

素因数の和:469132

約数の個数: 16

約数和(自身を含む): 42220980

約数和(自身を除く): 23456140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 469121, 938242, 1876484, 2345605, 3752968, 4691210, 9382420, 18764840]

約数ペア:

[(1, 18764840), (2, 9382420), (4, 4691210), (5, 3752968), (8, 2345605), (10, 1876484), (20, 938242), (40, 469121)]