138710320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247697}}^1$

素因数の和:247717

約数の個数: 40

約数和(自身を含む): 368574624

約数和(自身を除く): 229864304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247697, 495394, 990788, 1238485, 1733879, 1981576, 2476970, 3467758, 3963152, 4953940, 6935516, 8669395, 9907880, 13871032, 17338790, 19815760, 27742064, 34677580, 69355160, 138710320]

約数ペア:

[(1, 138710320), (2, 69355160), (4, 34677580), (5, 27742064), (7, 19815760), (8, 17338790), (10, 13871032), (14, 9907880), (16, 8669395), (20, 6935516), (28, 4953940), (35, 3963152), (40, 3467758), (56, 2476970), (70, 1981576), (80, 1733879), (112, 1238485), (140, 990788), (280, 495394), (560, 247697)]