128401810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{6967}}^1$

素因数の和:7090

約数の個数: 32

約数和(自身を含む): 245831040

約数和(自身を除く): 117429230

約数列:

[1, 2, 5, 10, 19, 38, 95, 97, 190, 194, 485, 970, 1843, 3686, 6967, 9215, 13934, 18430, 34835, 69670, 132373, 264746, 661865, 675799, 1323730, 1351598, 3378995, 6757990, 12840181, 25680362, 64200905, 128401810]

約数ペア:

[(1, 128401810), (2, 64200905), (5, 25680362), (10, 12840181), (19, 6757990), (38, 3378995), (95, 1351598), (97, 1323730), (190, 675799), (194, 661865), (485, 264746), (970, 132373), (1843, 69670), (3686, 34835), (6967, 18430), (9215, 13934)]