78439581

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 139426560

約数和(自身を除く): 60986979

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 57, 99, 121, 153, 171, 187, 209, 223, 323, 363, 561, 627, 669, 969, 1089, 1683, 1881, 2007, 2057, 2299, 2453, 2907, 3553, 3791, 4237, 6171, 6897, 7359, 10659, 11373, 12711, 18513, 20691, 22077, 26983, 31977, 34119, 38133, 39083, 41701, 46607, 72029, 80949, 117249, 125103, 139821, 216087, 242847, 351747, 375309, 419463, 458711, 512677, 648261, 792319, 1376133, 1538031, 2376957, 4128399, 4614093, 7130871, 8715509, 26146527, 78439581]

約数ペア:

[(1, 78439581), (3, 26146527), (9, 8715509), (11, 7130871), (17, 4614093), (19, 4128399), (33, 2376957), (51, 1538031), (57, 1376133), (99, 792319), (121, 648261), (153, 512677), (171, 458711), (187, 419463), (209, 375309), (223, 351747), (323, 242847), (363, 216087), (561, 139821), (627, 125103), (669, 117249), (969, 80949), (1089, 72029), (1683, 46607), (1881, 41701), (2007, 39083), (2057, 38133), (2299, 34119), (2453, 31977), (2907, 26983), (3553, 22077), (3791, 20691), (4237, 18513), (6171, 12711), (6897, 11373), (7359, 10659)]