20809680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2797}}^1$

素因数の和:2844

約数の個数: 80

約数和(自身を含む): 66614784

約数和(自身を除く): 45805104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2797, 3720, 5594, 7440, 8391, 11188, 13985, 16782, 22376, 27970, 33564, 41955, 44752, 55940, 67128, 83910, 86707, 111880, 134256, 167820, 173414, 223760, 260121, 335640, 346828, 433535, 520242, 671280, 693656, 867070, 1040484, 1300605, 1387312, 1734140, 2080968, 2601210, 3468280, 4161936, 5202420, 6936560, 10404840, 20809680]

約数ペア:

[(1, 20809680), (2, 10404840), (3, 6936560), (4, 5202420), (5, 4161936), (6, 3468280), (8, 2601210), (10, 2080968), (12, 1734140), (15, 1387312), (16, 1300605), (20, 1040484), (24, 867070), (30, 693656), (31, 671280), (40, 520242), (48, 433535), (60, 346828), (62, 335640), (80, 260121), (93, 223760), (120, 173414), (124, 167820), (155, 134256), (186, 111880), (240, 86707), (248, 83910), (310, 67128), (372, 55940), (465, 44752), (496, 41955), (620, 33564), (744, 27970), (930, 22376), (1240, 16782), (1488, 13985), (1860, 11188), (2480, 8391), (2797, 7440), (3720, 5594)]