28152805

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 9171995

約数列:

[1, 5, 23, 31, 53, 115, 149, 155, 265, 713, 745, 1219, 1643, 3427, 3565, 4619, 6095, 7897, 8215, 17135, 23095, 37789, 39485, 106237, 181631, 188945, 244807, 531185, 908155, 1224035, 5630561, 28152805]

約数ペア:

[(1, 28152805), (5, 5630561), (23, 1224035), (31, 908155), (53, 531185), (115, 244807), (149, 188945), (155, 181631), (265, 106237), (713, 39485), (745, 37789), (1219, 23095), (1643, 17135), (3427, 8215), (3565, 7897), (4619, 6095)]