28238085

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 53856000

約数和(自身を除く): 25617915

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 101, 109, 135, 171, 285, 303, 327, 505, 513, 545, 855, 909, 981, 1515, 1635, 1919, 2071, 2565, 2727, 2943, 4545, 4905, 5757, 6213, 9595, 10355, 11009, 13635, 14715, 17271, 18639, 28785, 31065, 33027, 51813, 55045, 55917, 86355, 93195, 99081, 165135, 209171, 259065, 279585, 297243, 495405, 627513, 1045855, 1486215, 1882539, 3137565, 5647617, 9412695, 28238085]

約数ペア:

[(1, 28238085), (3, 9412695), (5, 5647617), (9, 3137565), (15, 1882539), (19, 1486215), (27, 1045855), (45, 627513), (57, 495405), (95, 297243), (101, 279585), (109, 259065), (135, 209171), (171, 165135), (285, 99081), (303, 93195), (327, 86355), (505, 55917), (513, 55045), (545, 51813), (855, 33027), (909, 31065), (981, 28785), (1515, 18639), (1635, 17271), (1919, 14715), (2071, 13635), (2565, 11009), (2727, 10355), (2943, 9595), (4545, 6213), (4905, 5757)]