12581972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 25768512

約数和(自身を除く): 13186540

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 331, 442, 559, 662, 731, 884, 1118, 1324, 1462, 2236, 2924, 4303, 5627, 8606, 9503, 11254, 14233, 17212, 19006, 22508, 28466, 38012, 56932, 73151, 146302, 185029, 241961, 292604, 370058, 483922, 740116, 967844, 3145493, 6290986, 12581972]

約数ペア:

[(1, 12581972), (2, 6290986), (4, 3145493), (13, 967844), (17, 740116), (26, 483922), (34, 370058), (43, 292604), (52, 241961), (68, 185029), (86, 146302), (172, 73151), (221, 56932), (331, 38012), (442, 28466), (559, 22508), (662, 19006), (731, 17212), (884, 14233), (1118, 11254), (1324, 9503), (1462, 8606), (2236, 5627), (2924, 4303)]