28489455

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 26806545

約数列:

[1, 3, 5, 9, 15, 19, 27, 29, 45, 57, 87, 95, 135, 145, 171, 261, 285, 383, 435, 513, 551, 783, 855, 1149, 1305, 1653, 1915, 2565, 2755, 3447, 3915, 4959, 5745, 7277, 8265, 10341, 11107, 14877, 17235, 21831, 24795, 33321, 36385, 51705, 55535, 65493, 74385, 99963, 109155, 166605, 196479, 211033, 299889, 327465, 499815, 633099, 982395, 1055165, 1499445, 1899297, 3165495, 5697891, 9496485, 28489455]

約数ペア:

[(1, 28489455), (3, 9496485), (5, 5697891), (9, 3165495), (15, 1899297), (19, 1499445), (27, 1055165), (29, 982395), (45, 633099), (57, 499815), (87, 327465), (95, 299889), (135, 211033), (145, 196479), (171, 166605), (261, 109155), (285, 99963), (383, 74385), (435, 65493), (513, 55535), (551, 51705), (783, 36385), (855, 33321), (1149, 24795), (1305, 21831), (1653, 17235), (1915, 14877), (2565, 11107), (2755, 10341), (3447, 8265), (3915, 7277), (4959, 5745)]