11808080

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2203}}^1$

素因数の和:2283

約数の個数: 40

約数和(自身を含む): 27876192

約数和(自身を除く): 16068112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2203, 2680, 4406, 5360, 8812, 11015, 17624, 22030, 35248, 44060, 88120, 147601, 176240, 295202, 590404, 738005, 1180808, 1476010, 2361616, 2952020, 5904040, 11808080]

約数ペア:

[(1, 11808080), (2, 5904040), (4, 2952020), (5, 2361616), (8, 1476010), (10, 1180808), (16, 738005), (20, 590404), (40, 295202), (67, 176240), (80, 147601), (134, 88120), (268, 44060), (335, 35248), (536, 22030), (670, 17624), (1072, 11015), (1340, 8812), (2203, 5360), (2680, 4406)]