2499668840

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{248971}}^1$

素因数の和:249233

約数の個数: 32

約数和(自身を含む): 5646684960

約数和(自身を除く): 3147016120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 248971, 497942, 995884, 1244855, 1991768, 2489710, 4979420, 9958840, 62491721, 124983442, 249966884, 312458605, 499933768, 624917210, 1249834420, 2499668840]

約数ペア:

[(1, 2499668840), (2, 1249834420), (4, 624917210), (5, 499933768), (8, 312458605), (10, 249966884), (20, 124983442), (40, 62491721), (251, 9958840), (502, 4979420), (1004, 2489710), (1255, 1991768), (2008, 1244855), (2510, 995884), (5020, 497942), (10040, 248971)]