80445520

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18973}}^1$

素因数の和:19039

約数の個数: 40

約数和(自身を含む): 190574856

約数和(自身を除く): 110129336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 18973, 37946, 75892, 94865, 151784, 189730, 303568, 379460, 758920, 1005569, 1517840, 2011138, 4022276, 5027845, 8044552, 10055690, 16089104, 20111380, 40222760, 80445520]

約数ペア:

[(1, 80445520), (2, 40222760), (4, 20111380), (5, 16089104), (8, 10055690), (10, 8044552), (16, 5027845), (20, 4022276), (40, 2011138), (53, 1517840), (80, 1005569), (106, 758920), (212, 379460), (265, 303568), (424, 189730), (530, 151784), (848, 94865), (1060, 75892), (2120, 37946), (4240, 18973)]