19995111490

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2143}}^1\times {\mathrm{9619}}^1$

素因数の和:11866

約数の個数: 32

約数和(自身を含む): 36382993920

約数和(自身を除く): 16387882430

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 2143, 4286, 9619, 10715, 19238, 21430, 48095, 96190, 207871, 415742, 933043, 1039355, 1866086, 2078710, 4665215, 9330430, 20613517, 41227034, 103067585, 206135170, 1999511149, 3999022298, 9997555745, 19995111490]

約数ペア:

[(1, 19995111490), (2, 9997555745), (5, 3999022298), (10, 1999511149), (97, 206135170), (194, 103067585), (485, 41227034), (970, 20613517), (2143, 9330430), (4286, 4665215), (9619, 2078710), (10715, 1866086), (19238, 1039355), (21430, 933043), (48095, 415742), (96190, 207871)]