20403049905

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{248167}}^1$

素因数の和:248220

約数の個数: 80

約数和(自身を含む): 43240792320

約数和(自身を除く): 22837742415

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 81, 87, 105, 135, 145, 189, 203, 261, 315, 405, 435, 567, 609, 783, 945, 1015, 1305, 1827, 2349, 2835, 3045, 3915, 5481, 9135, 11745, 16443, 27405, 82215, 248167, 744501, 1240835, 1737169, 2233503, 3722505, 5211507, 6700509, 7196843, 8685845, 11167515, 15634521, 20101527, 21590529, 26057535, 33502545, 35984215, 46903563, 50377901, 64771587, 78172605, 100507635, 107952645, 140710689, 151133703, 194314761, 234517815, 251889505, 323857935, 453401109, 582944283, 703553445, 755668515, 971573805, 1360203327, 2267005545, 2914721415, 4080609981, 6801016635, 20403049905]

約数ペア:

[(1, 20403049905), (3, 6801016635), (5, 4080609981), (7, 2914721415), (9, 2267005545), (15, 1360203327), (21, 971573805), (27, 755668515), (29, 703553445), (35, 582944283), (45, 453401109), (63, 323857935), (81, 251889505), (87, 234517815), (105, 194314761), (135, 151133703), (145, 140710689), (189, 107952645), (203, 100507635), (261, 78172605), (315, 64771587), (405, 50377901), (435, 46903563), (567, 35984215), (609, 33502545), (783, 26057535), (945, 21590529), (1015, 20101527), (1305, 15634521), (1827, 11167515), (2349, 8685845), (2835, 7196843), (3045, 6700509), (3915, 5211507), (5481, 3722505), (9135, 2233503), (11745, 1737169), (16443, 1240835), (27405, 744501), (82215, 248167)]