668895038

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{3923}}^1$

素因数の和:4592

約数の個数: 32

約数和(自身を含む): 1209219840

約数和(自身を除く): 540324802

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 641, 1282, 3923, 4487, 7846, 8974, 12179, 24358, 27461, 54922, 74537, 85253, 149074, 170506, 521759, 1043518, 2514643, 5029286, 17602501, 35205002, 47778217, 95556434, 334447519, 668895038]

約数ペア:

[(1, 668895038), (2, 334447519), (7, 95556434), (14, 47778217), (19, 35205002), (38, 17602501), (133, 5029286), (266, 2514643), (641, 1043518), (1282, 521759), (3923, 170506), (4487, 149074), (7846, 85253), (8974, 74537), (12179, 54922), (24358, 27461)]