771998975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2081}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 1115285760

約数和(自身を除く): 343286785

約数列:

[1, 5, 11, 19, 25, 55, 71, 95, 209, 275, 355, 475, 781, 1045, 1349, 1775, 2081, 3905, 5225, 6745, 10405, 14839, 19525, 22891, 33725, 39539, 52025, 74195, 114455, 147751, 197695, 370975, 434929, 572275, 738755, 988475, 1625261, 2174645, 2807269, 3693775, 8126305, 10873225, 14036345, 30879959, 40631525, 70181725, 154399795, 771998975]

約数ペア:

[(1, 771998975), (5, 154399795), (11, 70181725), (19, 40631525), (25, 30879959), (55, 14036345), (71, 10873225), (95, 8126305), (209, 3693775), (275, 2807269), (355, 2174645), (475, 1625261), (781, 988475), (1045, 738755), (1349, 572275), (1775, 434929), (2081, 370975), (3905, 197695), (5225, 147751), (6745, 114455), (10405, 74195), (14839, 52025), (19525, 39539), (22891, 33725)]