28248185

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 40068864

約数和(自身を除く): 11820679

約数列:

[1, 5, 7, 35, 61, 101, 131, 305, 427, 505, 655, 707, 917, 2135, 3535, 4585, 6161, 7991, 13231, 30805, 39955, 43127, 55937, 66155, 92617, 215635, 279685, 463085, 807091, 4035455, 5649637, 28248185]

約数ペア:

[(1, 28248185), (5, 5649637), (7, 4035455), (35, 807091), (61, 463085), (101, 279685), (131, 215635), (305, 92617), (427, 66155), (505, 55937), (655, 43127), (707, 39955), (917, 30805), (2135, 13231), (3535, 7991), (4585, 6161)]