13230920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^2$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 30720060

約数和(自身を除く): 17489140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 158, 212, 265, 316, 395, 424, 530, 632, 790, 1060, 1580, 2120, 3160, 4187, 6241, 8374, 12482, 16748, 20935, 24964, 31205, 33496, 41870, 49928, 62410, 83740, 124820, 167480, 249640, 330773, 661546, 1323092, 1653865, 2646184, 3307730, 6615460, 13230920]

約数ペア:

[(1, 13230920), (2, 6615460), (4, 3307730), (5, 2646184), (8, 1653865), (10, 1323092), (20, 661546), (40, 330773), (53, 249640), (79, 167480), (106, 124820), (158, 83740), (212, 62410), (265, 49928), (316, 41870), (395, 33496), (424, 31205), (530, 24964), (632, 20935), (790, 16748), (1060, 12482), (1580, 8374), (2120, 6241), (3160, 4187)]