80128990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{7727}}^1$

素因数の和:7812

約数の個数: 32

約数和(自身を含む): 155240064

約数和(自身を除く): 75111074

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 170, 305, 610, 1037, 2074, 5185, 7727, 10370, 15454, 38635, 77270, 131359, 262718, 471347, 656795, 942694, 1313590, 2356735, 4713470, 8012899, 16025798, 40064495, 80128990]

約数ペア:

[(1, 80128990), (2, 40064495), (5, 16025798), (10, 8012899), (17, 4713470), (34, 2356735), (61, 1313590), (85, 942694), (122, 656795), (170, 471347), (305, 262718), (610, 131359), (1037, 77270), (2074, 38635), (5185, 15454), (7727, 10370)]