20795565

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 40550400

約数和(自身を除く): 19754835

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 79, 105, 109, 115, 161, 237, 327, 345, 395, 483, 545, 553, 763, 805, 1185, 1635, 1659, 1817, 2289, 2415, 2507, 2765, 3815, 5451, 7521, 8295, 8611, 9085, 11445, 12535, 12719, 17549, 25833, 27255, 37605, 38157, 43055, 52647, 60277, 63595, 87745, 129165, 180831, 190785, 198053, 263235, 301385, 594159, 904155, 990265, 1386371, 2970795, 4159113, 6931855, 20795565]

約数ペア:

[(1, 20795565), (3, 6931855), (5, 4159113), (7, 2970795), (15, 1386371), (21, 990265), (23, 904155), (35, 594159), (69, 301385), (79, 263235), (105, 198053), (109, 190785), (115, 180831), (161, 129165), (237, 87745), (327, 63595), (345, 60277), (395, 52647), (483, 43055), (545, 38157), (553, 37605), (763, 27255), (805, 25833), (1185, 17549), (1635, 12719), (1659, 12535), (1817, 11445), (2289, 9085), (2415, 8611), (2507, 8295), (2765, 7521), (3815, 5451)]