1280491870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{299881}}^1$

素因数の和:299956

約数の個数: 32

約数和(自身を含む): 2677346496

約数和(自身を除く): 1396854626

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 299881, 599762, 1499405, 2099167, 2998810, 4198334, 10495835, 18292741, 20991670, 36585482, 91463705, 128049187, 182927410, 256098374, 640245935, 1280491870]

約数ペア:

[(1, 1280491870), (2, 640245935), (5, 256098374), (7, 182927410), (10, 128049187), (14, 91463705), (35, 36585482), (61, 20991670), (70, 18292741), (122, 10495835), (305, 4198334), (427, 2998810), (610, 2099167), (854, 1499405), (2135, 599762), (4270, 299881)]