20173531120

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{359}}^1\times {\mathrm{2939}}^1$

素因数の和:3550

約数の個数: 80

約数和(自身を含む): 47246976000

約数和(自身を除く): 27073444880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 359, 478, 718, 956, 1195, 1436, 1795, 1912, 2390, 2872, 2939, 3590, 3824, 4780, 5744, 5878, 7180, 9560, 11756, 14360, 14695, 19120, 23512, 28720, 29390, 47024, 58780, 85801, 117560, 171602, 235120, 343204, 429005, 686408, 702421, 858010, 1055101, 1372816, 1404842, 1716020, 2110202, 2809684, 3432040, 3512105, 4220404, 5275505, 5619368, 6864080, 7024210, 8440808, 10551010, 11238736, 14048420, 16881616, 21102020, 28096840, 42204040, 56193680, 84408080, 252169139, 504338278, 1008676556, 1260845695, 2017353112, 2521691390, 4034706224, 5043382780, 10086765560, 20173531120]

約数ペア:

[(1, 20173531120), (2, 10086765560), (4, 5043382780), (5, 4034706224), (8, 2521691390), (10, 2017353112), (16, 1260845695), (20, 1008676556), (40, 504338278), (80, 252169139), (239, 84408080), (359, 56193680), (478, 42204040), (718, 28096840), (956, 21102020), (1195, 16881616), (1436, 14048420), (1795, 11238736), (1912, 10551010), (2390, 8440808), (2872, 7024210), (2939, 6864080), (3590, 5619368), (3824, 5275505), (4780, 4220404), (5744, 3512105), (5878, 3432040), (7180, 2809684), (9560, 2110202), (11756, 1716020), (14360, 1404842), (14695, 1372816), (19120, 1055101), (23512, 858010), (28720, 702421), (29390, 686408), (47024, 429005), (58780, 343204), (85801, 235120), (117560, 171602)]