216288520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{772459}}^1$

素因数の和:772477

約数の個数: 32

約数和(自身を含む): 556171200

約数和(自身を除く): 339882680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 772459, 1544918, 3089836, 3862295, 5407213, 6179672, 7724590, 10814426, 15449180, 21628852, 27036065, 30898360, 43257704, 54072130, 108144260, 216288520]

約数ペア:

[(1, 216288520), (2, 108144260), (4, 54072130), (5, 43257704), (7, 30898360), (8, 27036065), (10, 21628852), (14, 15449180), (20, 10814426), (28, 7724590), (35, 6179672), (40, 5407213), (56, 3862295), (70, 3089836), (140, 1544918), (280, 772459)]