78865990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{22993}}^1$

素因数の和:23021

約数の個数: 32

約数和(自身を含む): 165556800

約数和(自身を除く): 86690810

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 22993, 45986, 114965, 160951, 229930, 321902, 804755, 1126657, 1609510, 2253314, 5633285, 7886599, 11266570, 15773198, 39432995, 78865990]

約数ペア:

[(1, 78865990), (2, 39432995), (5, 15773198), (7, 11266570), (10, 7886599), (14, 5633285), (35, 2253314), (49, 1609510), (70, 1126657), (98, 804755), (245, 321902), (343, 229930), (490, 160951), (686, 114965), (1715, 45986), (3430, 22993)]