220120659

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:678

約数の個数: 60

約数和(自身を含む): 371812672

約数和(自身を除く): 151692013

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 121, 297, 333, 363, 407, 607, 891, 999, 1089, 1221, 1821, 2997, 3267, 3663, 4477, 5463, 6677, 9801, 10989, 13431, 16389, 20031, 22459, 32967, 40293, 49167, 60093, 67377, 73447, 120879, 180279, 202131, 220341, 247049, 362637, 540837, 606393, 661023, 741147, 1819179, 1983069, 2223441, 2717539, 5949207, 6670323, 8152617, 20010969, 24457851, 73373553, 220120659]

約数ペア:

[(1, 220120659), (3, 73373553), (9, 24457851), (11, 20010969), (27, 8152617), (33, 6670323), (37, 5949207), (81, 2717539), (99, 2223441), (111, 1983069), (121, 1819179), (297, 741147), (333, 661023), (363, 606393), (407, 540837), (607, 362637), (891, 247049), (999, 220341), (1089, 202131), (1221, 180279), (1821, 120879), (2997, 73447), (3267, 67377), (3663, 60093), (4477, 49167), (5463, 40293), (6677, 32967), (9801, 22459), (10989, 20031), (13431, 16389)]