27820845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2503}}^1$

素因数の和:2546

約数の個数: 48

約数和(自身を含む): 54687360

約数和(自身を除く): 26866515

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 2223, 2503, 3705, 7509, 11115, 12515, 22527, 32539, 37545, 47557, 97617, 112635, 142671, 162695, 237785, 292851, 428013, 488085, 618241, 713355, 1464255, 1854723, 2140065, 3091205, 5564169, 9273615, 27820845]

約数ペア:

[(1, 27820845), (3, 9273615), (5, 5564169), (9, 3091205), (13, 2140065), (15, 1854723), (19, 1464255), (39, 713355), (45, 618241), (57, 488085), (65, 428013), (95, 292851), (117, 237785), (171, 162695), (195, 142671), (247, 112635), (285, 97617), (585, 47557), (741, 37545), (855, 32539), (1235, 22527), (2223, 12515), (2503, 11115), (3705, 7509)]