28389645

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 51996672

約数和(自身を除く): 23607027

約数列:

[1, 3, 5, 9, 15, 31, 45, 47, 93, 141, 155, 235, 279, 423, 433, 465, 705, 1299, 1395, 1457, 2115, 2165, 3897, 4371, 6495, 7285, 13113, 13423, 19485, 20351, 21855, 40269, 61053, 65565, 67115, 101755, 120807, 183159, 201345, 305265, 604035, 630881, 915795, 1892643, 3154405, 5677929, 9463215, 28389645]

約数ペア:

[(1, 28389645), (3, 9463215), (5, 5677929), (9, 3154405), (15, 1892643), (31, 915795), (45, 630881), (47, 604035), (93, 305265), (141, 201345), (155, 183159), (235, 120807), (279, 101755), (423, 67115), (433, 65565), (465, 61053), (705, 40269), (1299, 21855), (1395, 20351), (1457, 19485), (2115, 13423), (2165, 13113), (3897, 7285), (4371, 6495)]