87939160

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3947}}^1$

素因数の和:4515

約数の個数: 32

約数和(自身を含む): 198268560

約数和(自身を除く): 110329400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 3947, 4456, 5570, 7894, 11140, 15788, 19735, 22280, 31576, 39470, 78940, 157880, 2198479, 4396958, 8793916, 10992395, 17587832, 21984790, 43969580, 87939160]

約数ペア:

[(1, 87939160), (2, 43969580), (4, 21984790), (5, 17587832), (8, 10992395), (10, 8793916), (20, 4396958), (40, 2198479), (557, 157880), (1114, 78940), (2228, 39470), (2785, 31576), (3947, 22280), (4456, 19735), (5570, 15788), (7894, 11140)]