28880475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 54163200

約数和(自身を除く): 25282725

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1235, 1425, 1559, 3705, 4677, 6175, 7795, 18525, 20267, 23385, 29621, 38975, 60801, 88863, 101335, 116925, 148105, 304005, 385073, 444315, 506675, 740525, 1155219, 1520025, 1925365, 2221575, 5776095, 9626825, 28880475]

約数ペア:

[(1, 28880475), (3, 9626825), (5, 5776095), (13, 2221575), (15, 1925365), (19, 1520025), (25, 1155219), (39, 740525), (57, 506675), (65, 444315), (75, 385073), (95, 304005), (195, 148105), (247, 116925), (285, 101335), (325, 88863), (475, 60801), (741, 38975), (975, 29621), (1235, 23385), (1425, 20267), (1559, 18525), (3705, 7795), (4677, 6175)]