81153840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338141}}^1$

素因数の和:338157

約数の個数: 40

約数和(自身を含む): 251577648

約数和(自身を除く): 170423808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338141, 676282, 1014423, 1352564, 1690705, 2028846, 2705128, 3381410, 4057692, 5072115, 5410256, 6762820, 8115384, 10144230, 13525640, 16230768, 20288460, 27051280, 40576920, 81153840]

約数ペア:

[(1, 81153840), (2, 40576920), (3, 27051280), (4, 20288460), (5, 16230768), (6, 13525640), (8, 10144230), (10, 8115384), (12, 6762820), (15, 5410256), (16, 5072115), (20, 4057692), (24, 3381410), (30, 2705128), (40, 2028846), (48, 1690705), (60, 1352564), (80, 1014423), (120, 676282), (240, 338141)]