73996280

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4523}}^1$

素因数の和:4943

約数の個数: 32

約数和(自身を含む): 166935600

約数和(自身を除く): 92939320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 4523, 8180, 9046, 16360, 18092, 22615, 36184, 45230, 90460, 180920, 1849907, 3699814, 7399628, 9249535, 14799256, 18499070, 36998140, 73996280]

約数ペア:

[(1, 73996280), (2, 36998140), (4, 18499070), (5, 14799256), (8, 9249535), (10, 7399628), (20, 3699814), (40, 1849907), (409, 180920), (818, 90460), (1636, 45230), (2045, 36184), (3272, 22615), (4090, 18092), (4523, 16360), (8180, 9046)]