28720076

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^2\times {\mathrm{173}}^1$

素因数の和:220

約数の個数: 72

約数和(自身を含む): 64797600

約数和(自身を除く): 36077524

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 173, 196, 242, 308, 343, 346, 484, 539, 686, 692, 847, 1078, 1211, 1372, 1694, 1903, 2156, 2422, 3388, 3773, 3806, 4844, 5929, 7546, 7612, 8477, 11858, 13321, 15092, 16954, 20933, 23716, 26642, 33908, 41503, 41866, 53284, 59339, 83006, 83732, 93247, 118678, 146531, 166012, 186494, 237356, 293062, 372988, 586124, 652729, 1025717, 1305458, 2051434, 2610916, 4102868, 7180019, 14360038, 28720076]

約数ペア:

[(1, 28720076), (2, 14360038), (4, 7180019), (7, 4102868), (11, 2610916), (14, 2051434), (22, 1305458), (28, 1025717), (44, 652729), (49, 586124), (77, 372988), (98, 293062), (121, 237356), (154, 186494), (173, 166012), (196, 146531), (242, 118678), (308, 93247), (343, 83732), (346, 83006), (484, 59339), (539, 53284), (686, 41866), (692, 41503), (847, 33908), (1078, 26642), (1211, 23716), (1372, 20933), (1694, 16954), (1903, 15092), (2156, 13321), (2422, 11858), (3388, 8477), (3773, 7612), (3806, 7546), (4844, 5929)]