18900392

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 23677528

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 167, 172, 188, 301, 329, 334, 344, 376, 602, 658, 668, 1169, 1204, 1316, 1336, 2021, 2338, 2408, 2632, 4042, 4676, 7181, 7849, 8084, 9352, 14147, 14362, 15698, 16168, 28294, 28724, 31396, 50267, 54943, 56588, 57448, 62792, 100534, 109886, 113176, 201068, 219772, 337507, 402136, 439544, 675014, 1350028, 2362549, 2700056, 4725098, 9450196, 18900392]

約数ペア:

[(1, 18900392), (2, 9450196), (4, 4725098), (7, 2700056), (8, 2362549), (14, 1350028), (28, 675014), (43, 439544), (47, 402136), (56, 337507), (86, 219772), (94, 201068), (167, 113176), (172, 109886), (188, 100534), (301, 62792), (329, 57448), (334, 56588), (344, 54943), (376, 50267), (602, 31396), (658, 28724), (668, 28294), (1169, 16168), (1204, 15698), (1316, 14362), (1336, 14147), (2021, 9352), (2338, 8084), (2408, 7849), (2632, 7181), (4042, 4676)]