81612720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{16193}}^1$

素因数の和:16219

約数の個数: 120

約数和(自身を含む): 313256736

約数和(自身を除く): 231644016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 16193, 32386, 48579, 64772, 80965, 97158, 113351, 129544, 145737, 161930, 194316, 226702, 242895, 259088, 291474, 323860, 340053, 388632, 453404, 485790, 566755, 582948, 647720, 680106, 728685, 777264, 906808, 971580, 1020159, 1133510, 1165896, 1295440, 1360212, 1457370, 1700265, 1813616, 1943160, 2040318, 2267020, 2331792, 2720424, 2914740, 3400530, 3886320, 4080636, 4534040, 5100795, 5440848, 5829480, 6801060, 8161272, 9068080, 10201590, 11658960, 13602120, 16322544, 20403180, 27204240, 40806360, 81612720]

約数ペア:

[(1, 81612720), (2, 40806360), (3, 27204240), (4, 20403180), (5, 16322544), (6, 13602120), (7, 11658960), (8, 10201590), (9, 9068080), (10, 8161272), (12, 6801060), (14, 5829480), (15, 5440848), (16, 5100795), (18, 4534040), (20, 4080636), (21, 3886320), (24, 3400530), (28, 2914740), (30, 2720424), (35, 2331792), (36, 2267020), (40, 2040318), (42, 1943160), (45, 1813616), (48, 1700265), (56, 1457370), (60, 1360212), (63, 1295440), (70, 1165896), (72, 1133510), (80, 1020159), (84, 971580), (90, 906808), (105, 777264), (112, 728685), (120, 680106), (126, 647720), (140, 582948), (144, 566755), (168, 485790), (180, 453404), (210, 388632), (240, 340053), (252, 323860), (280, 291474), (315, 259088), (336, 242895), (360, 226702), (420, 194316), (504, 161930), (560, 145737), (630, 129544), (720, 113351), (840, 97158), (1008, 80965), (1260, 64772), (1680, 48579), (2520, 32386), (5040, 16193)]