1279746860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{69779}}^1$

素因数の和:69926

約数の個数: 48

約数和(自身を含む): 3094882560

約数和(自身を除く): 1815135700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4585, 9170, 18340, 69779, 139558, 279116, 348895, 488453, 697790, 976906, 1395580, 1953812, 2442265, 4884530, 9141049, 9769060, 18282098, 36564196, 45705245, 63987343, 91410490, 127974686, 182820980, 255949372, 319936715, 639873430, 1279746860]

約数ペア:

[(1, 1279746860), (2, 639873430), (4, 319936715), (5, 255949372), (7, 182820980), (10, 127974686), (14, 91410490), (20, 63987343), (28, 45705245), (35, 36564196), (70, 18282098), (131, 9769060), (140, 9141049), (262, 4884530), (524, 2442265), (655, 1953812), (917, 1395580), (1310, 976906), (1834, 697790), (2620, 488453), (3668, 348895), (4585, 279116), (9170, 139558), (18340, 69779)]