178855120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1759}}^1$

素因数の和:1844

約数の個数: 80

約数和(自身を含む): 439971840

約数和(自身を除く): 261116720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1640, 1759, 2480, 2542, 3280, 3518, 5084, 6355, 7036, 8795, 10168, 12710, 14072, 17590, 20336, 25420, 28144, 35180, 50840, 54529, 70360, 72119, 101680, 109058, 140720, 144238, 218116, 272645, 288476, 360595, 436232, 545290, 576952, 721190, 872464, 1090580, 1153904, 1442380, 2181160, 2235689, 2884760, 4362320, 4471378, 5769520, 8942756, 11178445, 17885512, 22356890, 35771024, 44713780, 89427560, 178855120]

約数ペア:

[(1, 178855120), (2, 89427560), (4, 44713780), (5, 35771024), (8, 22356890), (10, 17885512), (16, 11178445), (20, 8942756), (31, 5769520), (40, 4471378), (41, 4362320), (62, 2884760), (80, 2235689), (82, 2181160), (124, 1442380), (155, 1153904), (164, 1090580), (205, 872464), (248, 721190), (310, 576952), (328, 545290), (410, 436232), (496, 360595), (620, 288476), (656, 272645), (820, 218116), (1240, 144238), (1271, 140720), (1640, 109058), (1759, 101680), (2480, 72119), (2542, 70360), (3280, 54529), (3518, 50840), (5084, 35180), (6355, 28144), (7036, 25420), (8795, 20336), (10168, 17590), (12710, 14072)]