81941805

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 158722200

約数和(自身を除く): 76780395

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 101, 121, 149, 165, 303, 363, 447, 495, 505, 605, 745, 909, 1089, 1111, 1341, 1515, 1639, 1815, 2235, 3333, 4545, 4917, 5445, 5555, 6705, 8195, 9999, 12221, 14751, 15049, 16665, 18029, 24585, 36663, 45147, 49995, 54087, 61105, 73755, 75245, 90145, 109989, 135441, 162261, 165539, 183315, 225735, 270435, 496617, 549945, 677205, 811305, 827695, 1489851, 1820929, 2483085, 5462787, 7449255, 9104645, 16388361, 27313935, 81941805]

約数ペア:

[(1, 81941805), (3, 27313935), (5, 16388361), (9, 9104645), (11, 7449255), (15, 5462787), (33, 2483085), (45, 1820929), (55, 1489851), (99, 827695), (101, 811305), (121, 677205), (149, 549945), (165, 496617), (303, 270435), (363, 225735), (447, 183315), (495, 165539), (505, 162261), (605, 135441), (745, 109989), (909, 90145), (1089, 75245), (1111, 73755), (1341, 61105), (1515, 54087), (1639, 49995), (1815, 45147), (2235, 36663), (3333, 24585), (4545, 18029), (4917, 16665), (5445, 15049), (5555, 14751), (6705, 12221), (8195, 9999)]