80220420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{63667}}^1$

素因数の和:63689

約数の個数: 72

約数和(自身を含む): 278101824

約数和(自身を除く): 197881404

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, 63667, 127334, 191001, 254668, 318335, 382002, 445669, 573003, 636670, 764004, 891338, 955005, 1146006, 1273340, 1337007, 1782676, 1910010, 2228345, 2292012, 2674014, 2865015, 3820020, 4011021, 4456690, 5348028, 5730030, 6685035, 8022042, 8913380, 11460060, 13370070, 16044084, 20055105, 26740140, 40110210, 80220420]

約数ペア:

[(1, 80220420), (2, 40110210), (3, 26740140), (4, 20055105), (5, 16044084), (6, 13370070), (7, 11460060), (9, 8913380), (10, 8022042), (12, 6685035), (14, 5730030), (15, 5348028), (18, 4456690), (20, 4011021), (21, 3820020), (28, 2865015), (30, 2674014), (35, 2292012), (36, 2228345), (42, 1910010), (45, 1782676), (60, 1337007), (63, 1273340), (70, 1146006), (84, 955005), (90, 891338), (105, 764004), (126, 636670), (140, 573003), (180, 445669), (210, 382002), (252, 318335), (315, 254668), (420, 191001), (630, 127334), (1260, 63667)]