80220840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{1949}}^1$

素因数の和:1984

約数の個数: 128

約数和(自身を含む): 280800000

約数和(自身を除く): 200579160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 588, 686, 735, 840, 980, 1029, 1176, 1372, 1470, 1715, 1949, 1960, 2058, 2744, 2940, 3430, 3898, 4116, 5145, 5847, 5880, 6860, 7796, 8232, 9745, 10290, 11694, 13643, 13720, 15592, 19490, 20580, 23388, 27286, 29235, 38980, 40929, 41160, 46776, 54572, 58470, 68215, 77960, 81858, 95501, 109144, 116940, 136430, 163716, 191002, 204645, 233880, 272860, 286503, 327432, 382004, 409290, 477505, 545720, 573006, 668507, 764008, 818580, 955010, 1146012, 1337014, 1432515, 1637160, 1910020, 2005521, 2292024, 2674028, 2865030, 3342535, 3820040, 4011042, 5348056, 5730060, 6685070, 8022084, 10027605, 11460120, 13370140, 16044168, 20055210, 26740280, 40110420, 80220840]

約数ペア:

[(1, 80220840), (2, 40110420), (3, 26740280), (4, 20055210), (5, 16044168), (6, 13370140), (7, 11460120), (8, 10027605), (10, 8022084), (12, 6685070), (14, 5730060), (15, 5348056), (20, 4011042), (21, 3820040), (24, 3342535), (28, 2865030), (30, 2674028), (35, 2292024), (40, 2005521), (42, 1910020), (49, 1637160), (56, 1432515), (60, 1337014), (70, 1146012), (84, 955010), (98, 818580), (105, 764008), (120, 668507), (140, 573006), (147, 545720), (168, 477505), (196, 409290), (210, 382004), (245, 327432), (280, 286503), (294, 272860), (343, 233880), (392, 204645), (420, 191002), (490, 163716), (588, 136430), (686, 116940), (735, 109144), (840, 95501), (980, 81858), (1029, 77960), (1176, 68215), (1372, 58470), (1470, 54572), (1715, 46776), (1949, 41160), (1960, 40929), (2058, 38980), (2744, 29235), (2940, 27286), (3430, 23388), (3898, 20580), (4116, 19490), (5145, 15592), (5847, 13720), (5880, 13643), (6860, 11694), (7796, 10290), (8232, 9745)]