12728828

素因数分解:

$2^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:762

約数の個数: 36

約数和(自身を含む): 26209512

約数和(自身を除く): 13480684

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 101, 196, 202, 404, 643, 707, 1286, 1414, 2572, 2828, 4501, 4949, 9002, 9898, 18004, 19796, 31507, 63014, 64943, 126028, 129886, 259772, 454601, 909202, 1818404, 3182207, 6364414, 12728828]

約数ペア:

[(1, 12728828), (2, 6364414), (4, 3182207), (7, 1818404), (14, 909202), (28, 454601), (49, 259772), (98, 129886), (101, 126028), (196, 64943), (202, 63014), (404, 31507), (643, 19796), (707, 18004), (1286, 9898), (1414, 9002), (2572, 4949), (2828, 4501)]