172740920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{392593}}^1$

素因数の和:392615

約数の個数: 32

約数和(自身を含む): 424001520

約数和(自身を除く): 251260600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 392593, 785186, 1570372, 1962965, 3140744, 3925930, 4318523, 7851860, 8637046, 15703720, 17274092, 21592615, 34548184, 43185230, 86370460, 172740920]

約数ペア:

[(1, 172740920), (2, 86370460), (4, 43185230), (5, 34548184), (8, 21592615), (10, 17274092), (11, 15703720), (20, 8637046), (22, 7851860), (40, 4318523), (44, 3925930), (55, 3140744), (88, 1962965), (110, 1570372), (220, 785186), (440, 392593)]