218358440

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{8819}}^1$

素因数の和:9449

約数の個数: 32

約数和(自身を含む): 492156000

約数和(自身を除く): 273797560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2476, 3095, 4952, 6190, 8819, 12380, 17638, 24760, 35276, 44095, 70552, 88190, 176380, 352760, 5458961, 10917922, 21835844, 27294805, 43671688, 54589610, 109179220, 218358440]

約数ペア:

[(1, 218358440), (2, 109179220), (4, 54589610), (5, 43671688), (8, 27294805), (10, 21835844), (20, 10917922), (40, 5458961), (619, 352760), (1238, 176380), (2476, 88190), (3095, 70552), (4952, 44095), (6190, 35276), (8819, 24760), (12380, 17638)]