57427640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 133306560

約数和(自身を除く): 75878920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 277, 284, 292, 355, 365, 554, 568, 584, 710, 730, 1108, 1385, 1420, 1460, 2216, 2770, 2840, 2920, 5183, 5540, 10366, 11080, 19667, 20221, 20732, 25915, 39334, 40442, 41464, 51830, 78668, 80884, 98335, 101105, 103660, 157336, 161768, 196670, 202210, 207320, 393340, 404420, 786680, 808840, 1435691, 2871382, 5742764, 7178455, 11485528, 14356910, 28713820, 57427640]

約数ペア:

[(1, 57427640), (2, 28713820), (4, 14356910), (5, 11485528), (8, 7178455), (10, 5742764), (20, 2871382), (40, 1435691), (71, 808840), (73, 786680), (142, 404420), (146, 393340), (277, 207320), (284, 202210), (292, 196670), (355, 161768), (365, 157336), (554, 103660), (568, 101105), (584, 98335), (710, 80884), (730, 78668), (1108, 51830), (1385, 41464), (1420, 40442), (1460, 39334), (2216, 25915), (2770, 20732), (2840, 20221), (2920, 19667), (5183, 11080), (5540, 10366)]