86979820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2347}}^1$

素因数の和:2482

約数の個数: 48

約数和(自身を含む): 195259680

約数和(自身を除く): 108279860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 2347, 3706, 4694, 7412, 9265, 9388, 11735, 18530, 23470, 37060, 39899, 46940, 79798, 159596, 199495, 255823, 398990, 511646, 797980, 1023292, 1279115, 2558230, 4348991, 5116460, 8697982, 17395964, 21744955, 43489910, 86979820]

約数ペア:

[(1, 86979820), (2, 43489910), (4, 21744955), (5, 17395964), (10, 8697982), (17, 5116460), (20, 4348991), (34, 2558230), (68, 1279115), (85, 1023292), (109, 797980), (170, 511646), (218, 398990), (340, 255823), (436, 199495), (545, 159596), (1090, 79798), (1853, 46940), (2180, 39899), (2347, 37060), (3706, 23470), (4694, 18530), (7412, 11735), (9265, 9388)]