20216964425

素因数分解:

$5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1\times {\mathrm{3089}}^1$

素因数の和:3506

約数の個数: 48

約数和(自身を含む): 28966896000

約数和(自身を除く): 8749931575

約数列:

[1, 5, 7, 25, 35, 149, 175, 251, 745, 1043, 1255, 1757, 3089, 3725, 5215, 6275, 8785, 15445, 21623, 26075, 37399, 43925, 77225, 108115, 186995, 261793, 460261, 540575, 775339, 934975, 1308965, 2301305, 3221827, 3876695, 5427373, 6544825, 11506525, 16109135, 19383475, 27136865, 80545675, 115525511, 135684325, 577627555, 808678577, 2888137775, 4043392885, 20216964425]

約数ペア:

[(1, 20216964425), (5, 4043392885), (7, 2888137775), (25, 808678577), (35, 577627555), (149, 135684325), (175, 115525511), (251, 80545675), (745, 27136865), (1043, 19383475), (1255, 16109135), (1757, 11506525), (3089, 6544825), (3725, 5427373), (5215, 3876695), (6275, 3221827), (8785, 2301305), (15445, 1308965), (21623, 934975), (26075, 775339), (37399, 540575), (43925, 460261), (77225, 261793), (108115, 186995)]