82145680

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2339}}^1$

素因数の和:2791

約数の個数: 40

約数和(自身を含む): 191505600

約数和(自身を除く): 109359920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2195, 2339, 3512, 4390, 4678, 7024, 8780, 9356, 11695, 17560, 18712, 23390, 35120, 37424, 46780, 93560, 187120, 1026821, 2053642, 4107284, 5134105, 8214568, 10268210, 16429136, 20536420, 41072840, 82145680]

約数ペア:

[(1, 82145680), (2, 41072840), (4, 20536420), (5, 16429136), (8, 10268210), (10, 8214568), (16, 5134105), (20, 4107284), (40, 2053642), (80, 1026821), (439, 187120), (878, 93560), (1756, 46780), (2195, 37424), (2339, 35120), (3512, 23390), (4390, 18712), (4678, 17560), (7024, 11695), (8780, 9356)]