20047784

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 39090600

約数和(自身を除く): 19042816

約数列:

[1, 2, 4, 8, 37, 74, 89, 148, 178, 296, 356, 712, 761, 1522, 3044, 3293, 6088, 6586, 13172, 26344, 28157, 56314, 67729, 112628, 135458, 225256, 270916, 541832, 2505973, 5011946, 10023892, 20047784]

約数ペア:

[(1, 20047784), (2, 10023892), (4, 5011946), (8, 2505973), (37, 541832), (74, 270916), (89, 225256), (148, 135458), (178, 112628), (296, 67729), (356, 56314), (712, 28157), (761, 26344), (1522, 13172), (3044, 6586), (3293, 6088)]