71489720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{57653}}^1$

素因数の和:57695

約数の個数: 32

約数和(自身を含む): 166043520

約数和(自身を除く): 94553800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 57653, 115306, 230612, 288265, 461224, 576530, 1153060, 1787243, 2306120, 3574486, 7148972, 8936215, 14297944, 17872430, 35744860, 71489720]

約数ペア:

[(1, 71489720), (2, 35744860), (4, 17872430), (5, 14297944), (8, 8936215), (10, 7148972), (20, 3574486), (31, 2306120), (40, 1787243), (62, 1153060), (124, 576530), (155, 461224), (248, 288265), (310, 230612), (620, 115306), (1240, 57653)]