71037880

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3617}}^1$

素因数の和:4119

約数の個数: 32

約数和(自身を含む): 160205040

約数和(自身を除く): 89167160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3617, 3928, 4910, 7234, 9820, 14468, 18085, 19640, 28936, 36170, 72340, 144680, 1775947, 3551894, 7103788, 8879735, 14207576, 17759470, 35518940, 71037880]

約数ペア:

[(1, 71037880), (2, 35518940), (4, 17759470), (5, 14207576), (8, 8879735), (10, 7103788), (20, 3551894), (40, 1775947), (491, 144680), (982, 72340), (1964, 36170), (2455, 28936), (3617, 19640), (3928, 18085), (4910, 14468), (7234, 9820)]