71297985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 131383296

約数和(自身を除く): 60085311

約数列:

[1, 3, 5, 11, 15, 31, 33, 53, 55, 93, 155, 159, 165, 263, 265, 341, 465, 583, 789, 795, 1023, 1315, 1643, 1705, 1749, 2893, 2915, 3945, 4929, 5115, 8153, 8215, 8679, 8745, 13939, 14465, 18073, 24459, 24645, 40765, 41817, 43395, 54219, 69695, 89683, 90365, 122295, 153329, 209085, 269049, 271095, 432109, 448415, 459987, 766645, 1296327, 1345245, 2160545, 2299935, 4753199, 6481635, 14259597, 23765995, 71297985]

約数ペア:

[(1, 71297985), (3, 23765995), (5, 14259597), (11, 6481635), (15, 4753199), (31, 2299935), (33, 2160545), (53, 1345245), (55, 1296327), (93, 766645), (155, 459987), (159, 448415), (165, 432109), (263, 271095), (265, 269049), (341, 209085), (465, 153329), (583, 122295), (789, 90365), (795, 89683), (1023, 69695), (1315, 54219), (1643, 43395), (1705, 41817), (1749, 40765), (2893, 24645), (2915, 24459), (3945, 18073), (4929, 14465), (5115, 13939), (8153, 8745), (8215, 8679)]