20180451824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{260111}}^1$

素因数の和:260505

約数の個数: 40

約数和(自身を含む): 42220339392

約数和(自身を除く): 22039887568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 373, 746, 1492, 2984, 4849, 5968, 9698, 19396, 38792, 77584, 260111, 520222, 1040444, 2080888, 3381443, 4161776, 6762886, 13525772, 27051544, 54103088, 97021403, 194042806, 388085612, 776171224, 1261278239, 1552342448, 2522556478, 5045112956, 10090225912, 20180451824]

約数ペア:

[(1, 20180451824), (2, 10090225912), (4, 5045112956), (8, 2522556478), (13, 1552342448), (16, 1261278239), (26, 776171224), (52, 388085612), (104, 194042806), (208, 97021403), (373, 54103088), (746, 27051544), (1492, 13525772), (2984, 6762886), (4849, 4161776), (5968, 3381443), (9698, 2080888), (19396, 1040444), (38792, 520222), (77584, 260111)]