991567330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1097}}^1$

素因数の和:1543

約数の個数: 64

約数和(自身を含む): 2042016480

約数和(自身を除く): 1050449150

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 409, 442, 818, 1097, 1105, 2045, 2194, 2210, 4090, 5317, 5485, 6953, 10634, 10970, 13906, 14261, 18649, 26585, 28522, 34765, 37298, 53170, 69530, 71305, 90389, 93245, 142610, 180778, 186490, 242437, 448673, 451945, 484874, 897346, 903890, 1212185, 2243365, 2424370, 4486730, 5832749, 7627441, 11665498, 15254882, 29163745, 38137205, 58327490, 76274410, 99156733, 198313466, 495783665, 991567330]

約数ペア:

[(1, 991567330), (2, 495783665), (5, 198313466), (10, 99156733), (13, 76274410), (17, 58327490), (26, 38137205), (34, 29163745), (65, 15254882), (85, 11665498), (130, 7627441), (170, 5832749), (221, 4486730), (409, 2424370), (442, 2243365), (818, 1212185), (1097, 903890), (1105, 897346), (2045, 484874), (2194, 451945), (2210, 448673), (4090, 242437), (5317, 186490), (5485, 180778), (6953, 142610), (10634, 93245), (10970, 90389), (13906, 71305), (14261, 69530), (18649, 53170), (26585, 37298), (28522, 34765)]