81493020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21559}}^1$

素因数の和:21584

約数の個数: 96

約数和(自身を含む): 289766400

約数和(自身を除く): 208273380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21559, 43118, 64677, 86236, 107795, 129354, 150913, 194031, 215590, 258708, 301826, 323385, 388062, 431180, 452739, 582093, 603652, 646770, 754565, 776124, 905478, 970155, 1164186, 1293540, 1358217, 1509130, 1810956, 1940310, 2263695, 2328372, 2716434, 2910465, 3018260, 3880620, 4074651, 4527390, 5432868, 5820930, 6791085, 8149302, 9054780, 11641860, 13582170, 16298604, 20373255, 27164340, 40746510, 81493020]

約数ペア:

[(1, 81493020), (2, 40746510), (3, 27164340), (4, 20373255), (5, 16298604), (6, 13582170), (7, 11641860), (9, 9054780), (10, 8149302), (12, 6791085), (14, 5820930), (15, 5432868), (18, 4527390), (20, 4074651), (21, 3880620), (27, 3018260), (28, 2910465), (30, 2716434), (35, 2328372), (36, 2263695), (42, 1940310), (45, 1810956), (54, 1509130), (60, 1358217), (63, 1293540), (70, 1164186), (84, 970155), (90, 905478), (105, 776124), (108, 754565), (126, 646770), (135, 603652), (140, 582093), (180, 452739), (189, 431180), (210, 388062), (252, 323385), (270, 301826), (315, 258708), (378, 215590), (420, 194031), (540, 150913), (630, 129354), (756, 107795), (945, 86236), (1260, 64677), (1890, 43118), (3780, 21559)]