81980892

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3221}}^1$

素因数の和:3339

約数の個数: 72

約数和(自身を含む): 239252832

約数和(自身を除く): 157271940

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 101, 126, 202, 252, 303, 404, 606, 707, 909, 1212, 1414, 1818, 2121, 2828, 3221, 3636, 4242, 6363, 6442, 8484, 9663, 12726, 12884, 19326, 22547, 25452, 28989, 38652, 45094, 57978, 67641, 90188, 115956, 135282, 202923, 270564, 325321, 405846, 650642, 811692, 975963, 1301284, 1951926, 2277247, 2927889, 3903852, 4554494, 5855778, 6831741, 9108988, 11711556, 13663482, 20495223, 27326964, 40990446, 81980892]

約数ペア:

[(1, 81980892), (2, 40990446), (3, 27326964), (4, 20495223), (6, 13663482), (7, 11711556), (9, 9108988), (12, 6831741), (14, 5855778), (18, 4554494), (21, 3903852), (28, 2927889), (36, 2277247), (42, 1951926), (63, 1301284), (84, 975963), (101, 811692), (126, 650642), (202, 405846), (252, 325321), (303, 270564), (404, 202923), (606, 135282), (707, 115956), (909, 90188), (1212, 67641), (1414, 57978), (1818, 45094), (2121, 38652), (2828, 28989), (3221, 25452), (3636, 22547), (4242, 19326), (6363, 12884), (6442, 12726), (8484, 9663)]