28407945

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{379}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 48153600

約数和(自身を除く): 19745655

約数列:

[1, 3, 5, 15, 19, 57, 95, 263, 285, 379, 789, 1137, 1315, 1895, 3945, 4997, 5685, 7201, 14991, 21603, 24985, 36005, 74955, 99677, 108015, 299031, 498385, 1495155, 1893863, 5681589, 9469315, 28407945]

約数ペア:

[(1, 28407945), (3, 9469315), (5, 5681589), (15, 1893863), (19, 1495155), (57, 498385), (95, 299031), (263, 108015), (285, 99677), (379, 74955), (789, 36005), (1137, 24985), (1315, 21603), (1895, 14991), (3945, 7201), (4997, 5685)]