28806945

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1657}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 49342080

約数和(自身を除く): 20535135

約数列:

[1, 3, 5, 15, 19, 57, 61, 95, 183, 285, 305, 915, 1159, 1657, 3477, 4971, 5795, 8285, 17385, 24855, 31483, 94449, 101077, 157415, 303231, 472245, 505385, 1516155, 1920463, 5761389, 9602315, 28806945]

約数ペア:

[(1, 28806945), (3, 9602315), (5, 5761389), (15, 1920463), (19, 1516155), (57, 505385), (61, 472245), (95, 303231), (183, 157415), (285, 101077), (305, 94449), (915, 31483), (1159, 24855), (1657, 17385), (3477, 8285), (4971, 5795)]