18282640

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1321}}^1$

素因数の和:1507

約数の個数: 40

約数和(自身を含む): 42785208

約数和(自身を除く): 24502568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1321, 1384, 1730, 2642, 2768, 3460, 5284, 6605, 6920, 10568, 13210, 13840, 21136, 26420, 52840, 105680, 228533, 457066, 914132, 1142665, 1828264, 2285330, 3656528, 4570660, 9141320, 18282640]

約数ペア:

[(1, 18282640), (2, 9141320), (4, 4570660), (5, 3656528), (8, 2285330), (10, 1828264), (16, 1142665), (20, 914132), (40, 457066), (80, 228533), (173, 105680), (346, 52840), (692, 26420), (865, 21136), (1321, 13840), (1384, 13210), (1730, 10568), (2642, 6920), (2768, 6605), (3460, 5284)]