18302920

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1823}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 23065400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1823, 2008, 2510, 3646, 5020, 7292, 9115, 10040, 14584, 18230, 36460, 72920, 457573, 915146, 1830292, 2287865, 3660584, 4575730, 9151460, 18302920]

約数ペア:

[(1, 18302920), (2, 9151460), (4, 4575730), (5, 3660584), (8, 2287865), (10, 1830292), (20, 915146), (40, 457573), (251, 72920), (502, 36460), (1004, 18230), (1255, 14584), (1823, 10040), (2008, 9115), (2510, 7292), (3646, 5020)]