28382775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 50380704

約数和(自身を除く): 21997929

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 113, 197, 255, 339, 425, 565, 591, 985, 1275, 1695, 1921, 2825, 2955, 3349, 4925, 5763, 8475, 9605, 10047, 14775, 16745, 22261, 28815, 48025, 50235, 66783, 83725, 111305, 144075, 251175, 333915, 378437, 556525, 1135311, 1669575, 1892185, 5676555, 9460925, 28382775]

約数ペア:

[(1, 28382775), (3, 9460925), (5, 5676555), (15, 1892185), (17, 1669575), (25, 1135311), (51, 556525), (75, 378437), (85, 333915), (113, 251175), (197, 144075), (255, 111305), (339, 83725), (425, 66783), (565, 50235), (591, 48025), (985, 28815), (1275, 22261), (1695, 16745), (1921, 14775), (2825, 10047), (2955, 9605), (3349, 8475), (4925, 5763)]