13217480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5417}}^1$

素因数の和:5489

約数の個数: 32

約数和(自身を含む): 30232440

約数和(自身を除く): 17014960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5417, 10834, 21668, 27085, 43336, 54170, 108340, 216680, 330437, 660874, 1321748, 1652185, 2643496, 3304370, 6608740, 13217480]

約数ペア:

[(1, 13217480), (2, 6608740), (4, 3304370), (5, 2643496), (8, 1652185), (10, 1321748), (20, 660874), (40, 330437), (61, 216680), (122, 108340), (244, 54170), (305, 43336), (488, 27085), (610, 21668), (1220, 10834), (2440, 5417)]