68780478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{20507}}^1$

素因数の和:20568

約数の個数: 32

約数和(自身を含む): 151595136

約数和(自身を除く): 82814658

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 20507, 41014, 61521, 123042, 266591, 533182, 799773, 881801, 1599546, 1763602, 2645403, 5290806, 11463413, 22926826, 34390239, 68780478]

約数ペア:

[(1, 68780478), (2, 34390239), (3, 22926826), (6, 11463413), (13, 5290806), (26, 2645403), (39, 1763602), (43, 1599546), (78, 881801), (86, 799773), (129, 533182), (258, 266591), (559, 123042), (1118, 61521), (1677, 41014), (3354, 20507)]