265960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 613800

約数和(自身を除く): 347840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 109, 122, 218, 244, 305, 436, 488, 545, 610, 872, 1090, 1220, 2180, 2440, 4360, 6649, 13298, 26596, 33245, 53192, 66490, 132980, 265960]

約数ペア:

[(1, 265960), (2, 132980), (4, 66490), (5, 53192), (8, 33245), (10, 26596), (20, 13298), (40, 6649), (61, 4360), (109, 2440), (122, 2180), (218, 1220), (244, 1090), (305, 872), (436, 610), (488, 545)]