128754160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{269}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 311765760

約数和(自身を除く): 183011600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 193, 248, 269, 310, 386, 496, 538, 620, 772, 965, 1076, 1240, 1345, 1544, 1930, 2152, 2480, 2690, 3088, 3860, 4304, 5380, 5983, 7720, 8339, 10760, 11966, 15440, 16678, 21520, 23932, 29915, 33356, 41695, 47864, 51917, 59830, 66712, 83390, 95728, 103834, 119660, 133424, 166780, 207668, 239320, 259585, 333560, 415336, 478640, 519170, 667120, 830672, 1038340, 1609427, 2076680, 3218854, 4153360, 6437708, 8047135, 12875416, 16094270, 25750832, 32188540, 64377080, 128754160]

約数ペア:

[(1, 128754160), (2, 64377080), (4, 32188540), (5, 25750832), (8, 16094270), (10, 12875416), (16, 8047135), (20, 6437708), (31, 4153360), (40, 3218854), (62, 2076680), (80, 1609427), (124, 1038340), (155, 830672), (193, 667120), (248, 519170), (269, 478640), (310, 415336), (386, 333560), (496, 259585), (538, 239320), (620, 207668), (772, 166780), (965, 133424), (1076, 119660), (1240, 103834), (1345, 95728), (1544, 83390), (1930, 66712), (2152, 59830), (2480, 51917), (2690, 47864), (3088, 41695), (3860, 33356), (4304, 29915), (5380, 23932), (5983, 21520), (7720, 16678), (8339, 15440), (10760, 11966)]