81286380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64513}}^1$

素因数の和:64535

約数の個数: 72

約数和(自身を含む): 281797152

約数和(自身を除く): 200510772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64513, 129026, 193539, 258052, 322565, 387078, 451591, 580617, 645130, 774156, 903182, 967695, 1161234, 1290260, 1354773, 1806364, 1935390, 2257955, 2322468, 2709546, 2903085, 3870780, 4064319, 4515910, 5419092, 5806170, 6773865, 8128638, 9031820, 11612340, 13547730, 16257276, 20321595, 27095460, 40643190, 81286380]

約数ペア:

[(1, 81286380), (2, 40643190), (3, 27095460), (4, 20321595), (5, 16257276), (6, 13547730), (7, 11612340), (9, 9031820), (10, 8128638), (12, 6773865), (14, 5806170), (15, 5419092), (18, 4515910), (20, 4064319), (21, 3870780), (28, 2903085), (30, 2709546), (35, 2322468), (36, 2257955), (42, 1935390), (45, 1806364), (60, 1354773), (63, 1290260), (70, 1161234), (84, 967695), (90, 903182), (105, 774156), (126, 645130), (140, 580617), (180, 451591), (210, 387078), (252, 322565), (315, 258052), (420, 193539), (630, 129026), (1260, 64513)]