256634988

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{689879}}^1$

素因数の和:689917

約数の個数: 24

約数和(自身を含む): 618132480

約数和(自身を除く): 361497492

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 372, 689879, 1379758, 2069637, 2759516, 4139274, 8278548, 21386249, 42772498, 64158747, 85544996, 128317494, 256634988]

約数ペア:

[(1, 256634988), (2, 128317494), (3, 85544996), (4, 64158747), (6, 42772498), (12, 21386249), (31, 8278548), (62, 4139274), (93, 2759516), (124, 2069637), (186, 1379758), (372, 689879)]