221664508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 434022400

約数和(自身を除く): 212357892

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 199, 398, 403, 691, 796, 806, 1382, 1612, 2587, 2764, 5174, 6169, 8983, 10348, 12338, 17966, 21421, 24676, 35932, 42842, 80197, 85684, 137509, 160394, 275018, 278473, 320788, 550036, 556946, 1113892, 1787617, 3575234, 4262779, 7150468, 8525558, 17051116, 55416127, 110832254, 221664508]

約数ペア:

[(1, 221664508), (2, 110832254), (4, 55416127), (13, 17051116), (26, 8525558), (31, 7150468), (52, 4262779), (62, 3575234), (124, 1787617), (199, 1113892), (398, 556946), (403, 550036), (691, 320788), (796, 278473), (806, 275018), (1382, 160394), (1612, 137509), (2587, 85684), (2764, 80197), (5174, 42842), (6169, 35932), (8983, 24676), (10348, 21421), (12338, 17966)]