18205160

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{983}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 41091840

約数和(自身を除く): 22886680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 983, 1852, 1966, 2315, 3704, 3932, 4630, 4915, 7864, 9260, 9830, 18520, 19660, 39320, 455129, 910258, 1820516, 2275645, 3641032, 4551290, 9102580, 18205160]

約数ペア:

[(1, 18205160), (2, 9102580), (4, 4551290), (5, 3641032), (8, 2275645), (10, 1820516), (20, 910258), (40, 455129), (463, 39320), (926, 19660), (983, 18520), (1852, 9830), (1966, 9260), (2315, 7864), (3704, 4915), (3932, 4630)]