4942640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2037

約数の個数: 40

約数和(自身を含む): 11868288

約数和(自身を除く): 6925648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 1993, 2480, 3986, 7972, 9965, 15944, 19930, 31888, 39860, 61783, 79720, 123566, 159440, 247132, 308915, 494264, 617830, 988528, 1235660, 2471320, 4942640]

約数ペア:

[(1, 4942640), (2, 2471320), (4, 1235660), (5, 988528), (8, 617830), (10, 494264), (16, 308915), (20, 247132), (31, 159440), (40, 123566), (62, 79720), (80, 61783), (124, 39860), (155, 31888), (248, 19930), (310, 15944), (496, 9965), (620, 7972), (1240, 3986), (1993, 2480)]