20237168

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1789}}^1$

素因数の和:1905

約数の個数: 40

約数和(自身を含む): 45279840

約数和(自身を除く): 25042672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1789, 2828, 3578, 5656, 7156, 11312, 12523, 14312, 25046, 28624, 50092, 100184, 180689, 200368, 361378, 722756, 1264823, 1445512, 2529646, 2891024, 5059292, 10118584, 20237168]

約数ペア:

[(1, 20237168), (2, 10118584), (4, 5059292), (7, 2891024), (8, 2529646), (14, 1445512), (16, 1264823), (28, 722756), (56, 361378), (101, 200368), (112, 180689), (202, 100184), (404, 50092), (707, 28624), (808, 25046), (1414, 14312), (1616, 12523), (1789, 11312), (2828, 7156), (3578, 5656)]