80642680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{38039}}^1$

素因数の和:38103

約数の個数: 32

約数和(自身を含む): 184874400

約数和(自身を除く): 104231720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 38039, 76078, 152156, 190195, 304312, 380390, 760780, 1521560, 2016067, 4032134, 8064268, 10080335, 16128536, 20160670, 40321340, 80642680]

約数ペア:

[(1, 80642680), (2, 40321340), (4, 20160670), (5, 16128536), (8, 10080335), (10, 8064268), (20, 4032134), (40, 2016067), (53, 1521560), (106, 760780), (212, 380390), (265, 304312), (424, 190195), (530, 152156), (1060, 76078), (2120, 38039)]