16786820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 37784880

約数和(自身を除く): 20998060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 97, 170, 194, 340, 388, 485, 509, 970, 1018, 1649, 1940, 2036, 2545, 3298, 5090, 6596, 8245, 8653, 10180, 16490, 17306, 32980, 34612, 43265, 49373, 86530, 98746, 173060, 197492, 246865, 493730, 839341, 987460, 1678682, 3357364, 4196705, 8393410, 16786820]

約数ペア:

[(1, 16786820), (2, 8393410), (4, 4196705), (5, 3357364), (10, 1678682), (17, 987460), (20, 839341), (34, 493730), (68, 246865), (85, 197492), (97, 173060), (170, 98746), (194, 86530), (340, 49373), (388, 43265), (485, 34612), (509, 32980), (970, 17306), (1018, 16490), (1649, 10180), (1940, 8653), (2036, 8245), (2545, 6596), (3298, 5090)]