54257990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{397}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 99722880

約数和(自身を除く): 45464890

約数列:

[1, 2, 5, 10, 79, 158, 173, 346, 395, 397, 790, 794, 865, 1730, 1985, 3970, 13667, 27334, 31363, 62726, 68335, 68681, 136670, 137362, 156815, 313630, 343405, 686810, 5425799, 10851598, 27128995, 54257990]

約数ペア:

[(1, 54257990), (2, 27128995), (5, 10851598), (10, 5425799), (79, 686810), (158, 343405), (173, 313630), (346, 156815), (395, 137362), (397, 136670), (790, 68681), (794, 68335), (865, 62726), (1730, 31363), (1985, 27334), (3970, 13667)]