38823640

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1993}}^1$

素因数の和:2491

約数の個数: 32

約数和(自身を含む): 87576480

約数和(自身を除く): 48752840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 1993, 2435, 3896, 3986, 4870, 7972, 9740, 9965, 15944, 19480, 19930, 39860, 79720, 970591, 1941182, 3882364, 4852955, 7764728, 9705910, 19411820, 38823640]

約数ペア:

[(1, 38823640), (2, 19411820), (4, 9705910), (5, 7764728), (8, 4852955), (10, 3882364), (20, 1941182), (40, 970591), (487, 79720), (974, 39860), (1948, 19930), (1993, 19480), (2435, 15944), (3896, 9965), (3986, 9740), (4870, 7972)]