28340955

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 54587520

約数和(自身を除く): 26246565

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 85, 135, 153, 159, 233, 255, 265, 459, 477, 699, 765, 795, 901, 1165, 1431, 2097, 2295, 2385, 2703, 3495, 3961, 4505, 6291, 7155, 8109, 10485, 11883, 12349, 13515, 19805, 24327, 31455, 35649, 37047, 40545, 59415, 61745, 106947, 111141, 121635, 178245, 185235, 209933, 333423, 534735, 555705, 629799, 1049665, 1667115, 1889397, 3148995, 5668191, 9446985, 28340955]

約数ペア:

[(1, 28340955), (3, 9446985), (5, 5668191), (9, 3148995), (15, 1889397), (17, 1667115), (27, 1049665), (45, 629799), (51, 555705), (53, 534735), (85, 333423), (135, 209933), (153, 185235), (159, 178245), (233, 121635), (255, 111141), (265, 106947), (459, 61745), (477, 59415), (699, 40545), (765, 37047), (795, 35649), (901, 31455), (1165, 24327), (1431, 19805), (2097, 13515), (2295, 12349), (2385, 11883), (2703, 10485), (3495, 8109), (3961, 7155), (4505, 6291)]