26989940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 58423680

約数和(自身を除く): 31433740

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 229, 284, 332, 355, 415, 458, 710, 830, 916, 1145, 1420, 1660, 2290, 4580, 5893, 11786, 16259, 19007, 23572, 29465, 32518, 38014, 58930, 65036, 76028, 81295, 95035, 117860, 162590, 190070, 325180, 380140, 1349497, 2698994, 5397988, 6747485, 13494970, 26989940]

約数ペア:

[(1, 26989940), (2, 13494970), (4, 6747485), (5, 5397988), (10, 2698994), (20, 1349497), (71, 380140), (83, 325180), (142, 190070), (166, 162590), (229, 117860), (284, 95035), (332, 81295), (355, 76028), (415, 65036), (458, 58930), (710, 38014), (830, 32518), (916, 29465), (1145, 23572), (1420, 19007), (1660, 16259), (2290, 11786), (4580, 5893)]