18398920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6301}}^1$

素因数の和:6385

約数の個数: 32

約数和(自身を含む): 41971320

約数和(自身を除く): 23572400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6301, 12602, 25204, 31505, 50408, 63010, 126020, 252040, 459973, 919946, 1839892, 2299865, 3679784, 4599730, 9199460, 18398920]

約数ペア:

[(1, 18398920), (2, 9199460), (4, 4599730), (5, 3679784), (8, 2299865), (10, 1839892), (20, 919946), (40, 459973), (73, 252040), (146, 126020), (292, 63010), (365, 50408), (584, 31505), (730, 25204), (1460, 12602), (2920, 6301)]