28771022

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 51840000

約数和(自身を除く): 23068978

約数列:

[1, 2, 7, 14, 23, 46, 161, 199, 322, 398, 449, 898, 1393, 2786, 3143, 4577, 6286, 9154, 10327, 20654, 32039, 64078, 72289, 89351, 144578, 178702, 625457, 1250914, 2055073, 4110146, 14385511, 28771022]

約数ペア:

[(1, 28771022), (2, 14385511), (7, 4110146), (14, 2055073), (23, 1250914), (46, 625457), (161, 178702), (199, 144578), (322, 89351), (398, 72289), (449, 64078), (898, 32039), (1393, 20654), (2786, 10327), (3143, 9154), (4577, 6286)]