420004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 814968

約数和(自身を除く): 394964

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 197, 394, 533, 788, 1066, 2132, 2561, 5122, 8077, 10244, 16154, 32308, 105001, 210002, 420004]

約数ペア:

[(1, 420004), (2, 210002), (4, 105001), (13, 32308), (26, 16154), (41, 10244), (52, 8077), (82, 5122), (164, 2561), (197, 2132), (394, 1066), (533, 788)]