1320809980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{200731}}^1$

素因数の和:200794

約数の個数: 48

約数和(自身を含む): 3237405696

約数和(自身を除く): 1916595716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 200731, 401462, 802924, 1003655, 1405117, 2007310, 2810234, 4014620, 5620468, 7025585, 9434357, 14051170, 18868714, 28102340, 37737428, 47171785, 66040499, 94343570, 132080998, 188687140, 264161996, 330202495, 660404990, 1320809980]

約数ペア:

[(1, 1320809980), (2, 660404990), (4, 330202495), (5, 264161996), (7, 188687140), (10, 132080998), (14, 94343570), (20, 66040499), (28, 47171785), (35, 37737428), (47, 28102340), (70, 18868714), (94, 14051170), (140, 9434357), (188, 7025585), (235, 5620468), (329, 4014620), (470, 2810234), (658, 2007310), (940, 1405117), (1316, 1003655), (1645, 802924), (3290, 401462), (6580, 200731)]