28905875

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{3257}}^1$

素因数の和:3343

約数の個数: 16

約数和(自身を含む): 36593856

約数和(自身を除く): 7687981

約数列:

[1, 5, 25, 71, 125, 355, 1775, 3257, 8875, 16285, 81425, 231247, 407125, 1156235, 5781175, 28905875]

約数ペア:

[(1, 28905875), (5, 5781175), (25, 1156235), (71, 407125), (125, 231247), (355, 81425), (1775, 16285), (3257, 8875)]