20203208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{997}}^1$

素因数の和:1169

約数の個数: 32

約数和(自身を含む): 40419000

約数和(自身を除く): 20215792

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 149, 298, 596, 997, 1192, 1994, 2533, 3988, 5066, 7976, 10132, 16949, 20264, 33898, 67796, 135592, 148553, 297106, 594212, 1188424, 2525401, 5050802, 10101604, 20203208]

約数ペア:

[(1, 20203208), (2, 10101604), (4, 5050802), (8, 2525401), (17, 1188424), (34, 594212), (68, 297106), (136, 148553), (149, 135592), (298, 67796), (596, 33898), (997, 20264), (1192, 16949), (1994, 10132), (2533, 7976), (3988, 5066)]