13320040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3433}}^1$

素因数の和:3541

約数の個数: 32

約数和(自身を含む): 30287880

約数和(自身を除く): 16967840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3433, 3880, 6866, 13732, 17165, 27464, 34330, 68660, 137320, 333001, 666002, 1332004, 1665005, 2664008, 3330010, 6660020, 13320040]

約数ペア:

[(1, 13320040), (2, 6660020), (4, 3330010), (5, 2664008), (8, 1665005), (10, 1332004), (20, 666002), (40, 333001), (97, 137320), (194, 68660), (388, 34330), (485, 27464), (776, 17165), (970, 13732), (1940, 6866), (3433, 3880)]