72298480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21017}}^1$

素因数の和:21073

約数の個数: 40

約数和(自身を含む): 172011312

約数和(自身を除く): 99712832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 21017, 42034, 84068, 105085, 168136, 210170, 336272, 420340, 840680, 903731, 1681360, 1807462, 3614924, 4518655, 7229848, 9037310, 14459696, 18074620, 36149240, 72298480]

約数ペア:

[(1, 72298480), (2, 36149240), (4, 18074620), (5, 14459696), (8, 9037310), (10, 7229848), (16, 4518655), (20, 3614924), (40, 1807462), (43, 1681360), (80, 903731), (86, 840680), (172, 420340), (215, 336272), (344, 210170), (430, 168136), (688, 105085), (860, 84068), (1720, 42034), (3440, 21017)]