66549366920

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{6628423}}^1$

素因数の和:6628685

約数の個数: 32

約数和(自身を含む): 150332656320

約数和(自身を除く): 83783289400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 6628423, 13256846, 26513692, 33142115, 53027384, 66284230, 132568460, 265136920, 1663734173, 3327468346, 6654936692, 8318670865, 13309873384, 16637341730, 33274683460, 66549366920]

約数ペア:

[(1, 66549366920), (2, 33274683460), (4, 16637341730), (5, 13309873384), (8, 8318670865), (10, 6654936692), (20, 3327468346), (40, 1663734173), (251, 265136920), (502, 132568460), (1004, 66284230), (1255, 53027384), (2008, 33142115), (2510, 26513692), (5020, 13256846), (10040, 6628423)]