72354580

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{16223}}^1$

素因数の和:16455

約数の個数: 24

約数和(自身を含む): 152635392

約数和(自身を除く): 80280812

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 16223, 32446, 64892, 81115, 162230, 324460, 3617729, 7235458, 14470916, 18088645, 36177290, 72354580]

約数ペア:

[(1, 72354580), (2, 36177290), (4, 18088645), (5, 14470916), (10, 7235458), (20, 3617729), (223, 324460), (446, 162230), (892, 81115), (1115, 64892), (2230, 32446), (4460, 16223)]