129221520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{538423}}^1$

素因数の和:538439

約数の個数: 40

約数和(自身を含む): 400587456

約数和(自身を除く): 271365936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 538423, 1076846, 1615269, 2153692, 2692115, 3230538, 4307384, 5384230, 6461076, 8076345, 8614768, 10768460, 12922152, 16152690, 21536920, 25844304, 32305380, 43073840, 64610760, 129221520]

約数ペア:

[(1, 129221520), (2, 64610760), (3, 43073840), (4, 32305380), (5, 25844304), (6, 21536920), (8, 16152690), (10, 12922152), (12, 10768460), (15, 8614768), (16, 8076345), (20, 6461076), (24, 5384230), (30, 4307384), (40, 3230538), (48, 2692115), (60, 2153692), (80, 1615269), (120, 1076846), (240, 538423)]