201221072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{18253}}^1$

素因数の和:18327

約数の個数: 40

約数和(自身を含む): 427800744

約数和(自身を除く): 226579672

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 2756, 5512, 11024, 18253, 36506, 73012, 146024, 237289, 292048, 474578, 949156, 967409, 1898312, 1934818, 3796624, 3869636, 7739272, 12576317, 15478544, 25152634, 50305268, 100610536, 201221072]

約数ペア:

[(1, 201221072), (2, 100610536), (4, 50305268), (8, 25152634), (13, 15478544), (16, 12576317), (26, 7739272), (52, 3869636), (53, 3796624), (104, 1934818), (106, 1898312), (208, 967409), (212, 949156), (424, 474578), (689, 292048), (848, 237289), (1378, 146024), (2756, 73012), (5512, 36506), (11024, 18253)]