81845956

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{701}}^1$

素因数の和:840

約数の個数: 36

約数和(自身を含む): 153876996

約数和(自身を除く): 72031040

約数列:

[1, 2, 4, 17, 34, 68, 101, 202, 289, 404, 578, 701, 1156, 1402, 1717, 2804, 3434, 6868, 11917, 23834, 29189, 47668, 58378, 70801, 116756, 141602, 202589, 283204, 405178, 810356, 1203617, 2407234, 4814468, 20461489, 40922978, 81845956]

約数ペア:

[(1, 81845956), (2, 40922978), (4, 20461489), (17, 4814468), (34, 2407234), (68, 1203617), (101, 810356), (202, 405178), (289, 283204), (404, 202589), (578, 141602), (701, 116756), (1156, 70801), (1402, 58378), (1717, 47668), (2804, 29189), (3434, 23834), (6868, 11917)]