2865915

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 64

約数和(自身を含む): 5806080

約数和(自身を除く): 2940165

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 71, 115, 117, 135, 195, 207, 213, 299, 345, 351, 355, 585, 621, 639, 897, 923, 1035, 1065, 1495, 1633, 1755, 1917, 2691, 2769, 3105, 3195, 4485, 4615, 4899, 8073, 8165, 8307, 9585, 13455, 13845, 14697, 21229, 24495, 24921, 40365, 41535, 44091, 63687, 73485, 106145, 124605, 191061, 220455, 318435, 573183, 955305, 2865915]

約数ペア:

[(1, 2865915), (3, 955305), (5, 573183), (9, 318435), (13, 220455), (15, 191061), (23, 124605), (27, 106145), (39, 73485), (45, 63687), (65, 44091), (69, 41535), (71, 40365), (115, 24921), (117, 24495), (135, 21229), (195, 14697), (207, 13845), (213, 13455), (299, 9585), (345, 8307), (351, 8165), (355, 8073), (585, 4899), (621, 4615), (639, 4485), (897, 3195), (923, 3105), (1035, 2769), (1065, 2691), (1495, 1917), (1633, 1755)]