388645912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{28729}}^1$

素因数の和:28843

約数の個数: 32

約数和(自身を含む): 775710000

約数和(自身を除く): 387064088

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1691, 3382, 6764, 13528, 28729, 57458, 114916, 229832, 545851, 1091702, 2183404, 2556881, 4366808, 5113762, 10227524, 20455048, 48580739, 97161478, 194322956, 388645912]

約数ペア:

[(1, 388645912), (2, 194322956), (4, 97161478), (8, 48580739), (19, 20455048), (38, 10227524), (76, 5113762), (89, 4366808), (152, 2556881), (178, 2183404), (356, 1091702), (712, 545851), (1691, 229832), (3382, 114916), (6764, 57458), (13528, 28729)]