78880040

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{5683}}^1$

素因数の和:6041

約数の個数: 32

約数和(自身を含む): 178022880

約数和(自身を除く): 99142840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 5683, 6940, 11366, 13880, 22732, 28415, 45464, 56830, 113660, 227320, 1972001, 3944002, 7888004, 9860005, 15776008, 19720010, 39440020, 78880040]

約数ペア:

[(1, 78880040), (2, 39440020), (4, 19720010), (5, 15776008), (8, 9860005), (10, 7888004), (20, 3944002), (40, 1972001), (347, 227320), (694, 113660), (1388, 56830), (1735, 45464), (2776, 28415), (3470, 22732), (5683, 13880), (6940, 11366)]