1280454994

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1\times {\mathrm{743}}^1$

素因数の和:1339

約数の個数: 64

約数和(自身を含む): 2510839296

約数和(自身を除く): 1230384302

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 557, 743, 1114, 1486, 1547, 3094, 3899, 5201, 7241, 7798, 9469, 9659, 10402, 12631, 14482, 18938, 19318, 25262, 50687, 66283, 67613, 88417, 101374, 123097, 132566, 135226, 164203, 176834, 246194, 328406, 413851, 827702, 861679, 1149421, 1723358, 2298842, 2896957, 5380063, 5793914, 7035467, 10760126, 14070934, 37660441, 49248269, 75320882, 91461071, 98496538, 182922142, 640227497, 1280454994]

約数ペア:

[(1, 1280454994), (2, 640227497), (7, 182922142), (13, 98496538), (14, 91461071), (17, 75320882), (26, 49248269), (34, 37660441), (91, 14070934), (119, 10760126), (182, 7035467), (221, 5793914), (238, 5380063), (442, 2896957), (557, 2298842), (743, 1723358), (1114, 1149421), (1486, 861679), (1547, 827702), (3094, 413851), (3899, 328406), (5201, 246194), (7241, 176834), (7798, 164203), (9469, 135226), (9659, 132566), (10402, 123097), (12631, 101374), (14482, 88417), (18938, 67613), (19318, 66283), (25262, 50687)]